Im thinking of trying to get off my antidepressants

Ive been on them for decades. I don't even know how much they help and i dont even know if i need them anymore.

Im starting to wonder if ive been dealing with side effects like high blood pressure, weight gain, and sexual stuff. So id like to see if those things go away after getting off them.

Anyone have any experience with this at all?

Im on effexor btw