OP’s child is already in school. They just need an extra ~$15k/year for the last 2 years.
Have your daughter take the $6500 sophomore federal student loan now. Contact the school financial aid office and tell them you want it. It has to be done now because once the school year ends you can’t get it. Save that for next year. In the fall have her take the $7500 federal student loan. Those 2 loans should cover junior year.
She can take a $7500 federal student loan her senior year too. That leaves ~$7500. If she works this summer and next she can probably raise $6k of it. If she’s already working than look into the loan options in post #1.