How tf do I stop worrying about everything

(I originally posted this on mentalhealthsupport but decided to post it here too because I’m desperate)

I’m about to graduate high school and it’s likely that I’m going to college out of state. This means there’s a possibility of moving away from my bf and going long distance. I’m worried that it won’t work out like that and I’ll lose him and the thought of that terrifies me. Every time I look at him or talk to him I feel like crying because it’s a reminder they everything good could end at any moment. I’m trying to stay positive and enjoy my time with him but it’s so difficult to get the anxiety to stop. I cry daily thinking about my future. I can’t afford to lose anything because I already have so little. I can’t lose anything else. I don’t want to lose him. Every day is exhausting and it’s so difficult to relax. I just want it all to stop. Not a day goes by where I don’t wish the anxiety and depression away.