Is this depression or not?

Im thirteen years old and am in 8th grade.My parents fight all the time and have had to call the police on several occasions. Ever since we moved back to America my mom has been drinking and my dad has been neglecting my sister (16) and I. I really don't like talking about their situation when they ask me so I just shut up and bottle up my emotions (not wanting to start anything). We moved to North Carolina 3 and a half years ago and it was good, I was making friends and right when I was going into 7th grade at the junior high we moved to new york. After a year at the middle school there my mom found out her stupid job was making her move back to North Carolina even after I missed up big time there (because I thought I wasn't coming back). You might think this is just some idiot complaining and I agree I am complaining but I have no one to talk to in my house,since my sisters getting ready for college, nd I get really depressed spending so much time alone. I usually go on facebook but it just makes me more depressed to see that the innocent kids I knew in 6th grade have turned into sl*ts and douchebgs. I literally only have one friend that I hangout with here and shes not a very good influence on me. I HATE , really HATE my life, but I can't really do anything about it and I diffently don't wanna commit suicide but at least then I would escape the peer pressure crashing in on me. The rare times I actually talk to someone they say im just complaining, or im moody, its a "phase", you just want attention, or stop bothering me. I'm sick and tired of being treated like a kid but excpected to act like a freaking adult! I'm only 13 why is this happening to me while everyone else loves their life. I concluded that maybe its just because my moms job makes us move a lot and I never have best friends that I can talk to and I think its accurate. Please, do I need therapy or is this just a phase that everyone goes through? Because if it is it sucks I always feel sick and I get major stress headaches from worrying about it.