I also found the world of drugs interesting. So is probably war, crime, pimping, gambling. But meaningful?
The way to a good life seems always related to overcoming self-centeredness (watch out for replacing substances with other obsession). The most simple way is to help people who have it really hard or a great cause. Another one is to work contemplatively (e.g. through meditation) on reducing the sense of self directly through understanding it's futility. Both are meaningful, deep and there are a lot of interesting people in those fields. You just have to find those who you click with.
I live sober for a long time now and really like it. There is not that seeking/hoping/fearing thing to experience, life becomes very stable and when i pay attention to it, there is a constant joyous, exhilarating undertone to experience; even just the visual field has a certain brightness to it. I don't know exactly were that's from or whether it's just normal but I think it may have to do with really not intoxicating at all until there is not even an impulse towards it.
These major perspective shifts do take quite a while to mature on a system, though. Good luck.

ID:AB4F7C

i've been clean for about a yr now maybe a bit longer and i'm in the same boat. i live alone but all i seem to do now is work and sleep. i don't have many friends and the ones i do have are lame as hell. before when i was patying all the time i seemed to have alot more fun and did more things. ahh well whatever i'd rather be sober than al effd up all the time. who knows the next time may be the last time.but i do have that itch once in while to go out and get some coke and get into some shi.t now i just smoke a bowl and play some xbox. imo: weed non addictive.

ID:11AEB9

i say go bac to the drugs but dont let them controll you to where your a bum on the street

ID:C36FDF

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ID:4B46ED

DO NOT GIVE IN!! It's all about people, places and things. Meaning you need to find other interesting ppl, better places, and things that stimulate you without using. It DOES get beter. I've been sober for almost 14 years, the first 5 or so was spent relearning myself. And retraining myself to have fun without being all messed up.

ID:E5D48B