I've been in the same place for a year now. I don't have any

I've been in the same place for a year now. I don't have any friends besides my foster sister. I just feel so lonely and down. I just wonder if I'm ever going to make friends here its so depressing not having no one to see or just get away with. It gets stressful at home sometimes and I just need to get out , but I can't because there's no one for me to just be friends with and just talk and hang out.

Does your foster sister have friends? Are you two close to the same age? If so maybe you could try getting to know some of her friends.