I resent my grandparents for treating me like a child all of my life.
Does this resentment hurt you too?
Yes because I love them so much.
I'm sure you feel hurt over the way they treated you, but they love you and did what they thought was best. You shouldn't hold negative feelings towards them. You should talk to them and tell them how you feel.
No, I have too much hatred right now. I will continue this resentment and never go back to living with them ever.
This is only going to hurt you in the end. You don't have to have a relationship, but you do need to get closure and move on in a healthy way.