With the excitement of becoming Level 120 come a lot of new activities to do. However, it is particularly important to note that you should continue to complete the story mode quests. You will undoubtedly achieve Level 120 before completing your third zone, so be sure to head back and finish the story quests as they are important to unlocking game content as well as pushing your reputation levels even higher. Each zone comes with a lot of side quests that can be ignored at first as you push your item level up, complete emissaries, and do dungeons, but when you have some time, be sure to wrap up all of the quest lines in each zone to maximize your reputation potential. Reputation is the gateway to all things in Battle for Azeroth, so quest away! Be sure to use our Quest Completion Checker tool here at Icy Veins to see if there are any missed quests in any of the zones for you to go back and complete!
Picking up herbalism and mining is the best professions to have while leveling. Not only will you earn gold as you level, but you will also get extra XP. At level 20 you will get over 500 XP for picking up a ore or a herb while killing a mob only gives a little over 100 XP. Don’t go out of your way to pick herbs if you are trying to level quickly, but pick the ones that are on your way. Leveling from 110 to 120 can be done pretty quickly just by doing this. There are a few items that will help you if you decide to use professions while leveling:
An alt (low level or no) in a capital city is an effective way to not only cheaply increase your available bank space, but to be a simple savings and auctioneer account. This character can serve as your bank, an auctioneer, bag-space creator and a time saver. Get one. (There may or may not be Item Recovery issues with characters below level 10, in cases where one's account is hacked.)
Okay, this farm really picked up steam here in late legion.  Generally what we're looking for is volatile air, and other volatiles when combined with the potion of treasure finding.  This farm is as easy as pulling the entire instance all the way to the first boss – and AOE'ing down ebery mob that follows.  In the video you can see me getting volatile airs in stacks of 11 for each pull I make.   Wit the trending price of each volatile being worth at least 100g, I was making 1100g per pull.  It's by far the most effcient volatile spot, but it has hits limits as you can only reset an instance 10 times before you have to wait a while to do it again.  If you only going to be on for an hour or so, this is the spot you want to hit.  It's great, fast, and awards a high liquid value of items.  Awesome Stuff.
This is a VERY GOOD potion of treasure finding farm that generally shocked me when I stumbled upon it.  In this video it's one of the more popular farms – just because it's potential to tap into soo many different markets (especially if you are a skinner).  It takes place at the pit of scales near the foot of the uldum river.  It allows you to not only gather tiny treasure chests faster than any other spot, but also awards an obscene amount of leather.  Just step on the eggs and 5 crocolisk will attach to your character.  Kill them all and start skinning them.  There are 6 egg spawns with very short respawn timers surrounding the area.  You will literally never be waiting for respawns.  Again, skinning is a must to take advantage of this mega spot – and even though, I feel only a handful of farms surpass this one, It's truely my favorite.

For items that you can gather directly, you have the choice of either going out to gather them yourself or to buy them from the AH. The former adds no cost to your item but requires time and effort, while the latter can be quick and hassle-free. Even should you choose to get the materials yourself, don't forget to add them to your cost — your labor and time should be compensated for, even if just a little.
Taking Herbalism and Mining as your two professions can be a lucrative way to level with the very stable and high prices of herbs and ore thus far in BfA. While rested, each mining and herbalism node will award nearly 4,000 experience points which makes it so that four to five herbalism or mining nodes is equivalent to one quest. If you have the Sky Golem mount for herbalism, you can pick herbs without losing mount speed. There are also enchantments for gloves that will increase the speed at which you can process the herbalism and mining nodes. These can be made rather easily by an enchanter and should be relatively inexpensive on the auction house. These enchants will pay for themselves with the time saved while herbing and mining. Remember to continue completing mining and herbalism quests while leveling up to increase the yield of each node making your herbalism and mining leveling experience exponentially more lucrative.
To achieve reliably 200% success rate, you need 1 champion equipped with Vial of Ofuscation (counter stealth missions), and the others can equip the +10% increased success rate per troop (some champions, like Falstad/Rexxar already have this passive and will stack). You want to counter the cursed status (success rate wont go over 100%) but you can skip increased time and additional costs affixes since they dont really contribute to success rate. Overall I would say that you need 1 Vial, 3 10% per troop Horns and either one 10% increased chance or one reduced duration item (it counters first strike missions). Using this setup, you will raise dramaticly your success rate which in turn will give you more rewards, but you will burn War Resources since you want to send troops to raise the success rate and we dont counter the increased costs affix most of the time. Its hard to evaluate how many missions you need in order to make-up the costs of the champion equipment, but in the long term is going to be worth.

The Horde will now control most of Kalimdor, and the Alliance most of the Eastern Kingdoms. For a low-level character the quests and storylines won't change, but for high-level players many zones will see changes via phasing. Teldrassil is burned and Undercity is in ruins as the story progresses by phasing. At max level Arathi Highlands and Darkshore are phased to be updated to reflect their status as locations for Warfronts.
 Nightborne - "Isolated behind a protective barrier for 10,000 years, the elves of Suramar grew increasingly dependent upon the arcane magic of the Nightwell. To protect this font of power, the leaders of the Nightborne struck a bargain with the Burning Legion that plunged their kingdom into civil war. After fighting for freedom from their demonic masters, the Nightborne seek allies in the Horde to help them reclaim their place in the world."
This is a risky way to make money, and not recommended. Tell a player that if he beats you in a duel you will give him 10 gold, but if you beat him he has to give you 5 gold. This can be very effective if you are skilled in PvP and make the bet with a trustworthy person, or friends. It is a very risky strategy, as you may lose gold, or the other player won't cough up the money anyway. You will also get a bad reputation if you don't cough up the money in the case of defeat.
These books cost 1.000 Gold each and are sold from your BfA gathering profession trainer. As soon as you re-learned your farming profession, use this book and you will get back all of your lost Battle for Azeroth gathering ranks. Your gathering skill remains reset at 1, but you don’t have to care about that since you have your ranks back – thats literally all that matters.