Sorry of what happened to you but I don't think there is a correlation between the decline of mental health and accelerated aging.
Take me for example, I'm 30 and look 23 years old.
I spent a lot of time hiding in my room, being depressed and living in the dark.
And even after first getting out to meet my shrink once per week and then going to college to learn a profession, I'm still young looking (I have baby face plus genetics I guess. Plus having hair helps though It's thinning). -and I don't drink or smoke either.
should i say good bye to life? I >can't bear life like this, i want to be young forever.
You can't stay young forever, your body is aging.
Your consciousness too but at a slower rate.
Look, I'm a manchild, I'm supposed to figure things out now but I'm still immature af.
And you know what? I'm okay with it.
Men are immature, yes they have duties they have to do but apart from that: you can do anything you wish with your life.
It's your life, the only thing you really own.
Do you want to die? If you do I won't try to talk you out of it.
But if you want to keep on living then I'd say don't give up, not yet.
You can still do a lot for your wellbeing.
Healthy eating habits, skin care, and fitness helps keeping you retain your youth.
Those look the worst who eat like crap, don't exercise and smoke/take drugs.