I used to play a lot in highschool to get my mind of jackasses who made fun of me. Never was a strong believer in fistfight so i took my anger and sadness to my guitar.

It always was a relief and sometimes I did shed a tear while playing. I never stopped playing since. Bad and good days alike.

What I suggest is play your guitar. If you come up with something that you like, record it. Play it to yourself while writting down words that come up to you when you think about your situation. With these words, start building lyrics. Don't think about rimes, just write them down.

When you feel good about your lyrics, sing them. Even if you don't think you have a great voice. It's your music with your lyrics, they're yours to play and sing.

Sing them with all your heart, let the pain go...

You'll see how good you'll feel after. That's music for your soul :)