I can't really tell you that life is worth living or that life is not worth living as I do not live your life. I can however give you advice on a way to try to rediscover life and see if there is still a glimmer of hope. Take a day truly to yourself. Not your phone, your computer, your social media or anything. If needed, advise anyone that may try to contact you that you will not be available for the day. Once that is done, preferably go outside and start walking in any direction. You can go to the park or somewhere peaceful or your can get lost and maybe discover something interesting. The destination does not really matter as the point of this is just to think. This allows you to feel at least somewhat free as you are walking outside rather than being trapped within a house.
I would like for you to think about every little detail about your situation and the possible future. At first it may seem like the future is a linear path into darkness and there's nothing that can be done about it. However, I would like for you to at least try to think of possible ways you could make your situation better such as removing yourself from relationships that may hurt you, start a new habit, or find a new career path such as welding as one user suggested. Although this may seem like some stereotypical "self-help" type advice, there is no hurting in at least trying. At the end of the day, you will at least gain a better perspective of your situation and gain knowledge on if there's anything you could do.
Suicide should be your absolute final option and through your thread here, I believe that there might be a tiny glimmer of hope still. I hope the absolute best for you and your future.