Hey, welcome, and i just wanted to tell you that the faster you stop, the better..Addiction only gets worse, it's a destructive disease, it doesn't stop if you don't stop...I am glad you are taking the right steps..I am 22, i wish i was your age again and know what i know today about self destruction....
Do what you have to do...Don't wait for complete despair or any kind of sad emotions to run you over...
Congratulations on making your first step...look forward to hear more about you..!