Constant anxiety everytime

hello to the people reading this, I am still at highschool and especially on school days I got constant worrying, anxiety for no reason. I do feel alone I have friends but I feel like nobody gets me too so it feels isolating in a deeper way and it does affect me and could be one of the causes. I try some coping techniques but no matter what there's constant anxiety worrying inside my brain and I can't stop it. My brain also turns stuff that I am excited abt to stuff I should be worried abt super fast which is concerning.

Any tips on this?