Like you’ll need to hide everything new you got into in fear he’ll yell at you or humiliate you for buying a new game or watching a new show, or even wearing a new shirt. Would you hide that you still celebrate Halloween, Christmas, birthdays, etc despite not being a little kid? Is it normal to go by keyspam usernames and be as anonymous as possible to avoid being found online by your friend as he’ll post private information or hate on all of your posts? While also seeming like the asshole because you’re being secretive for no reason?
This is not a healthy friendship. This person does not have your best interests at heart. Distance yourself. Stop hanging out, stop messaging. Give excuses if you’re not comfortable telling them that you won’t tolerate their treatment of you anymore. Do not let them guilt you into staying in each other’s lives. They might see you push them away and try everything they can to pull you back in. Don’t give in. Real friends like to see you happy and want to build your confidence up. Go to events where people have similar interests to you and you will make better friends. Good luck!