Really scared can someone help?

Tyisha • 20years Old
So it's my nans 59th birthday on the 10th August and I'm going home for her birthday but my boyfriend won't let me. He doesn't let me do anything.
So I've decided to stay at home when I go home but I'm scared?!? My plan is to go home change my number and not stay at mine maybe at my cousins or something because he has my address?
Does anyone else have any ideas? I just really need to get away. A friend of mine says he will come get me if he doesn't let me but I don't want to cause anything instead of trying myself. I've tried plenty of times but he has just threatened to cause things between my family or to do something else and gets his sister involved that threatens me too?
I'm very scared I'm only 20. What should I do? Please help!