Exactly what Christina said. The way your parents are treating you is abuse. If your grandparents don't know about this then they need to be informed. This is the first obstacle you need to overcome and I hate to say it but the boyfriend is really a secondary thing that should only come after you've gotten to safety. I don't know if he's a good guy or not but it's irrelevant since the only thing I can worry about regarding you is your abusive life you have dealt with.