So my mom changed the internet password took off my door knob and took away my cellphone service and doesn’t let me talk with my Dad what can I do?

You would have to provide more information about your age and the court orders for an attorney to give you advice about your options. Because your are probably a minor, it would be better for you to call a law firm directly to discuss the specifics of your case. But I will tell you that court usually make orders that allow the child to spend time with both parents.