Anxious :( just need someone 🥺

So the past year 1/2 I’ve graduated highschool, moved to England by myself and had a lot of medical issues :( on top of that I started getting really anxious all the time. I’ve never struggled with my mental health ever. Recently ive been thinking a lot about the future and how much it scares me. Idk why but I’ve even been thinking about how the world could end tomorrow, which I know isn’t going to happen. But I just don’t have any friends or anyone to talk to. I get so anxious about the future regarding my health, and stuff about the world :( can anyone help? Because I’m really struggling rn