Do i lose all the educational credits because my daughter married in September but i paid for her college all year

[Hal_Al]

Yes.  But the family doesn't lose it.  She can count the money you paid, when claiming the educational credit on her own joint return.

A  related question is: Can you still claim her as  a dependent. For an answer to that  question, see:

https://ttlc.intuit.com/community/taxes/discussion/can-i-claim-my-daughter-who-got-married-on-decemb...

If you are able to claim her as a dependent, then you can claim the educational credit. 

[DavidD66]

It depends.  If she qualifies as your dependent and you claim her on your tax return you can still claim the education credits.  If she filed or will file a joint return with her spouse, you cannot claim her as a dependent and therefore you cannot claim the education credits.  But as Hal_Al said, she can claim the credit on her tax return, if she qualifies.