Hi, Demokan. Welcome to the forum. You're moving pretty fast, so I recommend you slow down and consider every step carefully.
First, read the books and go to the web sites recommended by the other posters. Also take their advice about not getting on drugs, alcohol or other harmful substances or habits that could ruin your future. It's also very important to take school seriously, study hard and get into college. If anyone is trying to pressure you into getting baptized, tell them you're not ready and that Jesus, the perfect man, waited until he was 30.
I appreciate that you want to help your family. However, we all have to make our own choices ain life and accept the consequences. If they want to be JW's, it's because they get something out of it, albeit something the rest of humanity does not understand. By restricting reading material and communication with others, along with reinforcing their authority at every turn the Governing Body have most witnesses afraid to even consider thinking outside their little box.
You might talk with your counselor at school and ask for a referral for counseling. That episode with the pills scares me a bit. You're not suicidal, are you? A book that really helped me when I was waking up was Dr. Wayne Dyer's Your Erroneous Zones. This book helps you deal with negative emotions, such as guilt and anger, which most exiting JW's have to deal with.
While you're still at home with your parents, go along with the program. Make some friends at school who are serious about their studies and will be a support for you later on in life when you leave home.
Take baby steps, one at a time. Don't call unfavorable attention to yourself. Best wishes for a happy future. Keep checking in with us.