Hello!
Many people use YouTube vanced or Newpipe as YouTube alternatives-they are both safe.
I encourage you to go to @blokadaot on telegram with regards to the account issue. Many people there use Vanced regularly. I’m not sure, but I would use an alt account
Additionally, you can also try using the YouTube adblocker by Jerryn70 with the regular YouTube app. Please note that this adblocker has mixed results though.