"Based on this assessment, you have unused federal tuition, education, and textbook amounts of $10,935 that you can carry forward to later years." is it the CTC?

No, that's not the CTC, that's your tuition/education credit. If the CTC is mentioned, it will specifically say the Canada training credit limit. 

You may not have the CTC on your NOA because you are not eligible for it. This CRA page tells you who is eligible: https://www.canada.ca/en/revenue-agency/services/child-family-benefits/canada-training-credit/who-can-claim.html