It is understandable that this behaviour and threats of your mother results in your feeling unhappy and frustrated, and she has not yet learned to respect your privacy. She obviously does not yet understand boundaries. I wonder what it is that she wants? When you have college homework to do - then yes you have that priority (and you require your time alone in order to work on it without her distracting you). Is it possible for you to go to a library or study hall and try to work there instead of at home (this might allow for better privacy and concentration for you)? Could you wear ear plugs, or a head set so that you don't have to listen to her? Asking her doesn't seem to work. Yelling at her doesn't seem to work. What if you put up a note on your closed to - to say "please do not disturb - I'm studying" or "sleeping". Maybe tell her what time you are going to be available for her? Is there some kind of counselling service (for her, you, or both of you) - who might be able to help with this?