Flomo has it, Do as he says. allong with that, Shadow oil sells well(needed for leatherworkers), as dose Frost Oil(needed for quest/a few patterns/DM tribute runs), and maybe even a few others dependent on your server, but overall just sell the herbs.
Professions aside,their are some things to rmember, and they are rough for you(as a warrior, more on this in a bit). The number one thing that stops folks form having money, in the whole game, The freeking AH, This place is your bane, DONT BUY HERE. The AH is a giant Conveiance, Their is nothing in the AH you HAVE to have, sure you may want it, but dont need it.
The bigger issue is that you are a warrior(A verry Gear dependent class) and when Mount time rolls up, you are stuck with a second delema, New armor, now you have to pick and choose what you realy want. As a warrior not having plate is just silly.
Ok so at this time i still see the possiblity of success, if you try at it. Here are a few ideas.
1) dump your porfessions. Take up skinning and mining, Sell mats on the Ah, by the time you get to 40 you should be selling Mith, and that can get you some big cash, as well as some Thick leather(good cash if sold at AH),spend a chunk of time getting skinns and ore each time you play, and post them at the AH. If you stikc to it, dont buy any new sutff(just get drops instead of buying gear) or trade bars of metal/skins for armor/weapons form a current smith. If you stik to it and remain storng, you should have about 110 gold by 40, then you can dump skinning and take up smithing, power level it to make youself some plate(or buy it, you shouldnt have a money curnch till 60)
2) sell you herbs and potions, dont buy stuff form the ah, and grind Humans for cash and cloth.