Well you can get your mum off your back a little by making sure you just let her know that you are going running. Its a two way street you be nice and maybe she will be nice back to you.

I used to spend an awfull lot of time in my bedroom either reading or just thinking or I would have a bath, I even joined a night school and learned how to type !

Try to be nice to them when you are around them and smile alot you will find people smile back when you do that its hard not to, and try to avoide them when you are uptight, what a young girl who I know did recently was write her mum a letter letting her know how she felt and it worked really well, she said things she could without being interrupted.

Just a few ideas I am sure others will come up with a few more but in the mean time I wish you well.