I'm sorry you're going through it. I'm having some depression now too. All the meds I've tried never really fixed things, but sometimes they helped temporarily for me. For me, I have to really feel the feelings, I cry a lot maybe that's a good way to process for me. You could try different meds... Yes I have come out of very dark depressions and been highly functional again. I think it will happen for you too. No idea how long it lasts, so individual and many factors. Keep talking it out if you can