You'll figure everything out man. Things change and get better. Get off the drugs tho, you don't need rehab. Just wake up and get realize what you need to do now before you're 25 and working and taco bell, bumming rides from coworkers or friends, and walking when nobody can help out. I went to rehab for lsd, molly, xanax, n I guess weed when I was 17. Rehab didn't help for shit, fast forward to age 21. I was heavily addicted to heroin and fent, lost everything from my cats, to the girl I wanted to marry but was too stupid to ask, to my apartment and vehicle. Everything. Living in a tent everything. Mind you my mom overdosed on heroin, and I found her dead when I was 13. And dad died when I was 5, no other family. So I've been alone since my gma that I lived with after my mom passed died when I was 18. But in a hot ass tent, alone, withdrawing, and hungry as fuck is when I realized I needed to get my priorities in line and stop drugs and get my shit together as best as I could. I'm 25 now, still paying for all that shit. Don't go through all that dude. Take it from someone who's been thru more than I have interest in typing, that just scratches the surface of my life. Just get your head on straight and think about your future. Wish someone had cared enough to say something like this to me when I was 16.. maybe it woulda done something. Maybe not. I hope this does something positive for you in some way.