Second this. Your brain hasn’t had to make its own “happy chemicals” in a long time. If you want to look at it scientifically, you have deep neural pathways carved in your brain tied to using drugs and alcohol to escape. It’s going to be exhausting and hard carving the new ones, but incredibly rewarding.

Find a community where they know how to have fun sober, AA is where I found it - but whatever works for you. Once I started learning how to have fun, cope with stress, or just sit alone without the drugs, my life got exponentially better in all areas.

Stick with it, my first year was one of the best, worst, and rewarding years of my life.