I need to amend my taxes for certified rent paid

You have not mentioned what state you are in.   Rent is entered on some state returns; there is no place to enter anything about rent on a federal tax return.   Tell us what state and someone may be able to give you some specific advice about amending that state return to enter your rent credit.

https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/need-amend-state-return/L3hGFyaPp_US_en_US?uid=mdxthciy