my emails go to outbox and google wants my password

Please read If you can't send or receive email on your Mac - Apple Support, all the way through to the end.

Its last suggestion (remove your email account, then add the account back) is usually the fastest way to resolve this kind of problem though.

Remove email accounts in Mail on Mac

Add email accounts in Mail on Mac

I am assuming you are using Google as your email service provider, in which case the above instructions are still appropriate. If something is unexpectedly asking for your password, regardless of what it appears to be, don't provide it.