My brain is highly active at night and I can't sleep. Any suggestions to calm down?

Each night, i try to sleep, I start overthinking about stuff, about not able to get an internship, about wasting money and time, about suicide so that I can end everything, about being boring and ugly and having issues. I very well realise that I just need to devote my time and concentrate on the work to make a difference but I can't seem to stop this destructive overthinking. Any suggestions?
My brain is highly active at night and I can't sleep. Any suggestions to calm down?
Post Opinion