Important Ingredients?

Hello, I recently ran out of space in my bank, and it was mostly because of all the ingredients I kept in my bank because I thought that I will need them all in the future, but I realized that some of them are not that important, so if possible, can anyone tell me the important ingredients to keep in my bank?

What I mean by important is that it will be used to craft good crafted items or for other purposes.

 

If you plan to level professions yourself, keep only the ones around your prof lvl.
If you plan to craft a high lvl item on endgame, sell all of them and just buy the ones you need when you ask someone to craft it for you.
If you are not interested in professions, like most ppl, look the price of them on the trade market and sell the ones you think are worth something.