Hi philosopher its not to late for you to turn your life around at all.
I left the JWs in my mid twenties, but due to circumstance, divorce, etc. i started partying too hard. Mainly because i could, i felt no one is now going to tell me what to do and wanted to relive my youth i felt i'd lost. I may sound like an old man for saying this, but don't fall into that trap. Eventually i realised i had a problem with drink and drugs, so decided to do something about it and turn my life around.
At the age of 38 i have decided to go to university, i dropped out in my twenties due to the partying, so now feel that i've now took another step forwards. Its never too late and if your in your twenties you have a lot of living to do.
Feel free to PM me anytime.
Paul