I'd say whether or not ADs help you is very much a person to person thing. It does sound like you still haven't found the right AD that works for you, but trying so many different ones is so tiring and an awful process. I'm on Zoloft and sometimes the side effects make me want to stop, sometimes I think I want to just be able to be myself again - but then I realise frankly, Im not good at being myself, I cant cope without it. Whenever I forgot to take it for more than 1 day I end up having the worst crash ever, and it really has changed my life for the positive. Having said that, getting over depression is more than just ADs I think - i you just took them and did nothing else you won't fully recover, you need to be doing other things, changing your life style in positive ways and stuff. not that any of that is easy.
When I was put on them, I was told that it should not be for life, but that they should be used to help motivate me to make positive changes in my life, and that in the future I should be able to taper off them having made positive changes. I dont know if that will ever happen or if thats a highly optimistic thing for the doctor to say to me, but im still slightly hopeful that at one point in my life i might be able to do that.