Sorry its abit long, and confuzing! Hope you can help..
I've not been myself at school, I've not really spoke to anyone, my grades are the same but my relationships with my friends have disappeared for 10years me and my boy best mate where inseparable, we ever had anything more than a close friendship, and now we hardly speak, we don't even say hi anymore and I'm confused why, I asked him if I have done something to upset him but he said I've not, I don't know what to do, we use to have such good times together!
Also my girl best mate has started hanging round with the wrong crowd smoking and she told me she doesn't like it she only does it for a boy who's wayy to old for her anyway! She her self is younger than me and she has only just recently turned 13! I feel like I'm losing everybody around me! Please give me advice of how I can mend my relationships with everybody!xo

It does not look like there is a rip in your relationship that you can mend. People change and that change has nothing to do with you.
You just continue to be yourself, be a friend. They may come around again. Make new friends.

That's another problem, I HATE making new friends & everybody I don't know are completely opposite to me and we don't get on :(

Well you have a choice to make. You can either pout over things that have nothing to do with you and be friendless, or you can decide to step out of your comfort zone and make new ones.

Oops! You must spread some Reputation around before giving it to Homegirl 50 again.

I agree with Homegirl.

You hate going out and making friends yet you're complaining your friendships have disappeared.