I broke someones privacy, im sorry for it but i cant tell her, what else can i do to feel right

I was facing issues while uploading my semester marksheet, i pressed submit but one of the subject was missing, so i asked one of my college mates if she faced the same issue, she was taking too long, offline and i was in a hurry. I knew her birth date and phone number, so i logged into her id in college portal to check, thats it, i logged out immidiately