My mother is a *****?

My mother is... well the only word i can think of to describe her is a *****. if you knew her as a friend you would think she is the nicest most caring person ever. but if you knew her as me you would hate her to the end of the world. she yells at me for no apparent reason other than "because she feels like it". also i can never do anything right ,EVER, not ever everything i do is wrong in some way. I could giver her everything she wanted, do everthing she wanted. my mother is a clean freak, so, i could clean the house top to bottom scrub every last surface, dust every last corner, wash everything that could be washed and she would still complain that the fireplace was dusty, or that the towels werent folded the right way. all she can concentrate on is the wrong "what did she do wrong now" never what i did right. instead of saying "good job, you got good on your test" she'd say "oh my you are so stupid i can't believe that you got one question wrong on your test". I don't know how much longer i can live with her. i dont live with my dad so he cant help, and i LOVE my dad to death i would kill for him thats how much i love him, because he understand how i work and how i learn and how to get the right reactions out of me. i would love to live with my dad but he lives in scarborough and he works shifts so it would vary from nightshift to day shift to evening shift. how can i deal with her im not good at telling her how i feel and even if i was she's not good at listening. i don't know how to deal. ( im 13 soon to be 14).??????????????????? HELP ME PLEASE!!!!!!!