My mum is so mean...?

This is a most unfourtunate situation, no parent should ever make their child to feel that way. And they are very lucky to have you, and not some spoiled child who takes their frustration out in violence. Here is what I suggest, have a sit down with your Mum and Dad, let them know that you are going to talk calmly and continue to do so. Let them know how you feel, tell them everything you just told us, if they continue to make you feel like absolutle rubbish then I suggest then maybe you should try and get them into an enviroment where maybe a counselor is involved, from the sounds of it you may just have to do that first. That way you are in a controlled enviroment, you can say what you need and have to say and be able to get your feelings out with the saftey of someone who is trained to deal with situations like this. You parents need to understand that the way they are treating you is WRONG, however you seem to have your head in the right place by keeping you calm and in the long run that will be a very usefull beneifit to you when you get older. Best of luck luv!