My school used this online grade management system and the students access to it was really bad and only showed the letter grade for each calss average. So I ma

My school used this online grade management system and the students access to it was really bad and only showed the letter grade for each calss average. So I made a python app to manage all your grades and calculate the by scarping the online site using python. I sold the app and made some money so i don't know if you can do the same. Otherwise just keep learning and follow everyone else's advise.