Idk what to do anymore

I can’t. I feel so alone. I feel like i have no one and like don’t get me wrong i have a few friends who I love to death but I cant talk to them about anything serious like my mental health of anything! Like it’s gotten so worse and everyone thinks I’m fine and has the biggest go at me everytime I’m in a bad mood or not talking and idk idk anymore I keep losing hope and idk how to make it stay. Like atm I feel like isolating everyone and disappearing ah