I need help

Hello everyone! I'm looking for advice this time. 

I get really bad anxiety about things that 

1. aren't real

and

2. are uncontrollable

Recently that anxiety has been targeting rabies exposure and sepsis despite me having neither and having 0 contact with anything that would cause those things (but this is unimportant.) My question is does anyone have any tips on how to stop anxiety? Ignoring it definitely helps, talking myself through it usually helps momentarily but then makes it worse. I've tried tips and tricks like putting citric acid on my tongue or snapping a bracelet or just going to sleep early. Ironically the thing that's helped me the most is taking ashwagandha gummies before bed. BUT all of these things are only temporary and for several hours every night I will occasionally feel a strange sensation in my arm I'll freak out!

If any unmedicated anxiety warriors are seeing this, please let me know your tricks.