How do I get Microsoft to reset number of tries for game sharing

If you've reached your limit, you'll have to wait the year until you can change it again.

That person would have to change their home Xbox back to their own console or someone else's to stop sharing your games. There is no way to manually remove them.

ok thanks for letting me know

set your xbox to your own home xbox also change your password and require signin

That person would have to change their home Xbox back to their own console or someone else's to stop sharing your games. There is no way to manually remove them.

As long as no one else has it, you'll need to give the system time to update so it recognizes the original was freed up.