I want to confirm I am refiling right, im up against some repayments. I had a school payment i input wrong as well and want to conform that im doing this right.

Yes, you can reFile to change your tuition credit or student loan interest.

For future reference, it is easier to review the list of what prevents an eFile, everything else is permitted: https://www.canada.ca/en/revenue-agency/services/e-services/e-services-businesses/refile-online-t1-adjustments-efile-service-providers.html#toc4

I hope this was helpful