Uffda I'm sorry that happened, that sounds incredibly frustrating. Especially with them involving your job! For what it's worth you sound very responsible and well-adjusted to me, and it sounds like you have a good relationship with your mom. Those three things will far outlast anything else.

The nonsense with your grandparents is hard to live with, and they are wrong to use their power this way, but it is temporary. You're almost to 18, hang in there! You're doing great!