There are a couple of different thoughts:

-You are looking for cash, nothing else-
Keep skinning and pick up another gathering skill such as mining or herbalism (both have pros and cons), sell everything on AH. I'd say try not to do both herbalism and mining because you can only track one type of thing on your minimap at once. If you are tracking minerals you can't track herbs and vice versa.

-You are looking for a profession that is beneficial to your class-
Go either tailoring/enchanting or herbalism/alchemy. You will make more side money with herbalism/alchemy but there are some very, very nice tailor-only patterns that are available later in the game. You can also disenchant all the stuff you make leveling tailoring to get mats for enchanting. You can also disenchant useless quest rewards and old soulbound items. As an alchemist you can make sure you are never without mana potions (very important to priests) and stat enhancing elixirs.

You got to figure out what you are looking to get from a profession and then choose accordingly.

Is there a macro to automatically learn a profession in WoW without clicking TRAIN?