I would recommend therapy and possibly for your mom or the both of you together to just help work out some issues regarding communication and control. I think shes having a very hard time allowing you to have your own life and doing what you want to do and although her intentions may be good, she is not letting you do what you want to do in your relationships and your life in general. And you are old enough to make your own decisions. I would try to sit down with her and have a conversation about this and perhaps bring up counseling. If she doesn't want to do that, look into it for yourself, for it can really help with analyzing your own thoughts and feelings as well as your mothers'. good luck!