🚀 go-pugleaf

Do first aid anyway.  It might take some money to buy cloth since you
are also a tailor, but its great for situations when you are out of
mana or need to conserve mana somehow.

Fishin can make you money at higher levels but it takes a long time to
skill up.  If you're horde, make sure you go to hinterlands around
level 50 to get the fishing pole quest.  If you're alliance you can
either try to win the fishing contest in STV or do a quest from
Shattrath that gives you another good fishing pole.  The good thing
about fishing is you don't need to be in a specific zone to gain
skillups.  You can still gain skillups fishing in the starting zones.
The difference is you won't catch good fish that can be sold for
money.  The way skillups work in fishin is that the number of fish
caught to increase your skill becomes greater as you increase in
skill.

Cooking doesn't directly contribute to your income, but rather saves
you money from buying food.  Again, food can be used to save on mana,
requiring you to need less water to regain mana, instead of healing
yourself then drinking.  Food can also give buffs, and the Outland
food buffs are better than the old world buff.  Most old world buffs
give stamina of some sort.  Outland food buffs can give all sorts of
other buffs, like strength and spell damage.  Any buff is always a
bonus, and leveling cooking is easy as most of the mats for cooking
come from the mobs you kill.

In the end it won't hurt you much to not level these skills, but
having them can give you some advantages.  If you have the time, level
fishing for the money.  If you do level first aid, level it to 360, at
which point you can learn heavy netherweave bandage.  Its not
important to get first aid to 375, as there is nothing new to learn
after 360.  This way you can make the best bandages in the game
without investing the cloth to get to the max skill.  Cooking is the
easiest to level since you'll always be gathering mats for it, and any
mats that don't drop can usually be bought from a vendor in a town
cheap.  Even if you don't want the food for healing, make the food for
buffs.