I've been in that situation for a while... My dad died when I was in 8th grade and My grades went down, I stopped playing sports, and I lost a lot of my friends because I wouldn't hang out with them as much as I used to. I had a girl at the time, we dated for 3, almost 4 years and I also was a great thing that ended... that helped me cope with the loss of my father.

Then after we split I had time to just sit back and think about more people other than mine and mine girlfriends friends. So I slumped into drugs, and alcohol... Im doing a lot better now, I still smoke. It helps the relax me, but overall as a rough breakup ( we got back together once) it was a good experience for me to grow up I guess.