Hi there
Thank you for writing to me. It sounds like what you have to say is really painfull and I'm very sorry to hear that your mum is treating you in this way. You say that your mum blames you for your parents splitting up - that sounds really hurtful. Adults are responsible for their own relationships and if things didn't work out between your parents that is something only they can make happen. Your mum should never make you feel like this was your fault - whatever happened is between her and your dad.
It sounds like your mum says things that are really mean and that can really hurt your feelings and it's not okay for her to treat you this way. How you look is something that is unique to you and because no one looks like you makes you all the more precious to this world. You say yourself that even though you may not be in the highest set in school and that you get in trouble sometimes you still do manage to get good grades and certificates sometimes - that just shows that you can be good at things and that there are good things about you.
I'm so sorry that your dad said that about you and that your mum speaks to you this way. What they are doing could be described as emotional abuse and that is very wrong. You did the right thing to write to me about this. I want you to know that you are special and you are beautiful because you are you!
There are people who can help and perhaps you can have a think about talking to a trusted adult about what is happening at home. This could be a teacher in school, for example, it might also help them understand why you get in trouble sometimes? You deserve help and you deserve support, other adults that could help could be a school nurse or a school counsellor.
You can also always talk to a ChildLine counsellor, you can phone 0800 1111, chat online or even send a private email. ChildLine is here for you, you are important.
Take care and don't give up! There is help out there for you.
Sam