Why does it keep making me reset my Apple ID password?

What to do after [or before] you change your Apple ID email address or password - https://support.apple.com/HT204071 - After you change your Apple ID email address or password, you might need to update your sign-in information with any Apple services you're using.

Apple ID is locked or disabled

If necessary, contact iTunes Support. Scroll to the bottom of the page in the 2nd link.

iTunes Support

iTunes Support – world wide