how to stop my mind from racing?

i have extreme anxiety and didn't get any sleep at all last night, I'm kind of going through a rough time right now dealing with my anxiety and on top of that my boyfriend broke up with me a couple days ago. I'm being so paranoid and I'm so tired but can't relax my mind enough to fall asleep because I'm overthinking about everything ( thinking about life, death, my relationship, and basically everything there is to think about ) my eyes r hard to keep open at this point but I'm too paranoid to sleep.