To me, my depression is identifiable and that makes me not want medication and treatment. Yes, I've tried medication, therapy and it helped but was never enough to make me excited about living. I will always be suicidal and wish to die. The only thing that changes is if I'll be active or fantasize about it. My problem is simple, I've had so many traumatic life experiences that I just can't accept and get over, I'm consumed and haunted by them. There is never a day that I don't think of simply doing it and getting it over with.
My advice to you is do everything possible to seek help and treatment. While you're in rehab try to focus and learn something from this experience. Why go through all this just to continue to self sabotage, please try. I was homeless before and I'll do anything in my power to get up and go to work, I don't have family and cut off all my friends. I have horrible days but I don't want to be homeless again. Try to set some small goals for yourself. Maybe instead of saying I'll work at a factory, say by next year I plan to be a supervisor, manager etc. When you get that promotion it feels great. Maybe get 2 jobs just to stay busy, they money will help of course but the goal is to be occupied and less time to think. Take the medication and don't miss doses, those meds take time to get in your system. Give yourself bad days but limit them to maybe 2 days only. You have to come to a place where you can exist in this world. I'm sorry this was long but hopefully something I said may have helped.
Suicide was an option for me only when I exhausted all other options and resources. I wish you the best in your journey.