Dear Linda
I know this is a completely new environment for you and I also know you feel really lonely. you need to learn more about English if you want to make some friends. Friend is a quite important things for someone who is a learner there. If you have many friends, they all can help you if you have dome problem with everything.
You also need to help someone that with some problem or has the same problem as you have. This makes you have more relationship in the new school. And you can participate in more activities or clubs. you also need to chat more with your new friends. This takes time and just try your best. Don't be shy.
Good Luck!
这是我自己写的啊! 希望能帮助到你：）