What do I do? My life is messed up!?

I've had such an unfair life, my Dad and Mum divorced when I was 5, my mum moved around a lot during my GCSEs so I didn't end up doing all that well, four Cs. I have no idea what job I want to get or what I would even be able to get. She blames me for getting bad grades but I was predicted all As before she started moving around so I had to keep changing schools. She accuses me of lying when I haven't, I haven't ever had a girlfriend because I'm afraid of my mum finding out and getting annoyed at me for that and the same with friends, she'd ruin my friendships if she saw my friends. My mum basically really messed up my life, I did retake year where I could retake 2 of my GCSEs and hopefully get a pass in 1 or 2 more, if I don't I have no idea what I'll do, if I do then I don't know if I can cope with my mum any longer.

She is over the top and swears and shouts at me, hey boyfriend also shouts abuse and sometimes hits me, I keep praying to God I don't wake up the next day, I have no idea what will happen in my life and feel trapped. I'm 16, nearly 17 btw.