Can I get graduate from abroad with a fake mark sheet of class 12th?

DUE TO SOME DIFFICULT SITUATIONS AT MY HOUSE I COULDN'T COMPLETE MY CLASS 12. I GET TO KNOW ABOUT A ONLINE COLLEGE BASED IN USA NAMED UNIVERSITY OF THE PEOPLE. I GOT ADMITTED THERE AND WHEN THEY ASKED FOR MY 12 TH MARKSHEET I JUST SEND THEM A SIMPLE PHOTOSHOPPED EDITED AND THEY APPROVED IT. NOW AFTER 4 YEARS I AM ABOUT TO COMPLETE MY DEGREE. I WILL HAVE BS IN COMPUTER SCIENCE DEGREE BUT NO 12 TH MARKSHEET. WHAT CAN I DO? WHAT SHOULD I DO? HOW WILL IT AFFECT ME? WHAT ARE THE POSSIBLE SOLUTIONS TO THIS