The 1098T will list the amount the school charged for tuition, allowable fees and charges. It will also list the amount you paid to the school (the $2500 you charged on the credit card is considered cash paid to the school). You may have other QEE you can keep track of and add to the QEE, like books, MAYBE a laptop and other costs, some supplies if they are required for a class like art supplies or lab supplies, but things like pens and notebooks and general office supplies are not included in QEE.
If you are eligible for the AOTC, there is a maximum of $4000 credit, and of that only $1000 is ‘refundable’ (you’ll get it even if you don’t have tax liability) but the other $3000 only offsets other taxes owed. There is also a Lifetime learning credit but that has different amounts that you can claim. Read IRS booklet 970 for education credits.
All you can do now is keep all your receipts. I don’t think you’ll ‘get it all back.’ You might qualify for some of it as a tax credit.