is there a way to transfer all the progress from my main account

No. There's no way to transfer digital ownership of a game. You forfeit everything on an account once it's banned.

ok thx and another quick quiestion is there a way to switch ownership of the games i guess is a way to say it i had message come up saying to login to my banned account when trying to load r6 on my new one something about it was purchased or downloaded with that account

No. Nothing can be transferred between accounts.

Is there a way to create a new account with a different age and then transfer all my progress over?

In addition to the above post about license transfers, if your console is the main one and his is not, all content that belongs to him should be on his console am I correct?... Unless you double purchased content on the main Xbox for both gamertags/accounts,
in which case, then he will need a license transfer from his account on the main Xbox to his in his room Xbox... and You will need to transfer the license from your old main to the new main.. Then you guys can do content transfers.

However, if all the content on the main Xbox exclusively belongs to you, then the transfer will in no way affect him at all, just make sure his latest profile is saved on his room console before you do the move.