computer problems

I think I'm thinking too hard and I want to run into the lake and start swimming until I start sinking. my head is full of chatter and I have to remind myself it doesn't really matter. It could- if I keep letting it- but I shouldn't. I should stop. I want to throw my phone away and run forever. I wish I didn't feel like my mind was glitching but I'm not sure how to turn it off. where's the power button! I want to try to turn myself off and back on again.