Use Opera, turn the built in VPN on and use a temporary email service to make a new account. It takes a while and you may go through a few accounts on the way. Avoid the subreddits you might’ve been blocked from. Lookup the list of bots that handle the blocking and block those too. Eventually you can change the email to your usual and you won’t need to use Opera to access it. I added a counter to my username and added one to each new account. I’m blocked by IP on r/Australia. I’m still avoiding it for lentish and missing it less and less.