Cure my substance abuse disorder

During college I involuntary abstained from cannabis use on and off due to religious parents. The whole thing was traumatic and full of drama. Since then I've come to terms with sobriety. It's gonna be a rare occasional thing, and I feel fine not smoking anymore. But I was hugely dependant on it. To sleep, to nap, to rest, to relax, to watch movies, to play video games. I like doing everything I liked high. I liked being high. I liked doing nothing high, literally. But ultimately the more I accept sobriety the better things get.

Now I need to heal. I'm wired. I'm restless. I can't relax. I managed to tame my overactive brain via meditation but I avoid music because it makes my imagination go nuts. So yeah, I don't have an overactive brain but it's extremely responsive to external stimuli. Cars honking and birds chirping get under my skin. I'm easily bored and I can barely sit through a movie without thoughts of doing something else. I have interest in things but kinda low motivation to do them. I used to be depressed that I couldn't smoke, now I'm bummed out that I wasted my time chasing it. I could have done better with my time. I miss life before I started smoking. I was sober and I didn't constantly think about being high. I didn't mind being away from weed. I miss that. I enjoyed doing regular things, but now I can't seem to get back into that groove.

Lastly, my nights are not cozy anymore. When it gets dark you feel it, you feel the difference in the day. For me, it's the same as the afternoon. Help me out.