Dude you can't make such drastic life decision without atleast trying these things. A beer after a long days work is so nice and blazing a joint before watching your favourite band play is awesome as well. Legit 2 of my favourite things to do. Everything in moderation is good you can't just cut these things out because of a decision u made when u were 14. Just a thought.
The decision I made when I was 14 has made me proud of myself. All if not most of my friends who smoke wish that they didnt start and half of them who drink said they think its a waste of time. The idea of smoking anything doesn't appeal to me and beer/alcohol smells gross.
I have put a lot of thinking into it...that's why I still choose to be sober.
If those are your 2 favorite things to do, then have a blast with it.
My 2 favorite things to do are sleeping and touring.
Which is what I do.