What am i going to do?

I am going to start senior school in a couple of week and i am going to a really ruff school where there are loads of scary older people. It will be the first time i have to catch the bus on my own and all my friends are catching a different bus. It's too much and the schools so big. I got bullied at my primary school so i just know im going to get bullied. has anyone got any help ?