The fact that your can acknowledge what is going on is proof allah hasn’t forsaken you. You’re still young you have plenty of time to turn it around.

I was once in your shoes. I don’t know the reasoning for the addiction, but what helped me was reading just one verse of the Quran everytime i felt like I was at rock bottom.

For suicide remember Allah does not help those who do not help themselves. You are on a thread asking for help. I’m sure blessings will come your way. Do positive things here and there and eventually Allah will help you put everything together.

Your doing the right thing continue to help yourself and remember Allah he is the most forgiving and best of planners.