The entire point of school was for me to experiment and learn and make mistakes. But when am I supposed to do that when literally everything and anything is gra

The entire point of school was for me to experiment and learn and make mistakes. But when am I supposed to do that when literally everything and anything is graded? Human brains don't go at "oh but look at the weight of this one lab" they go "fuck I got a C, I'm pathetic and shouldn't be here". At most the grading should be "attempted something" vs "did literally nothing". And even that is useless imo. But yeah I didn't feel like I'm studying to learn and get better in school. I felt like I have a limited amount of time and I'm gonna have to just do what I can do increase my grades. I hate higher education. This is just one of the reasons.