[amrx431]

I have suffered from this personally. I was a "smart" kid. I was always top of my class till 10th standard. Everybody called me smart and intelligent. The schoolwork till 10th never challenged me. But when the complexity increase with pre college courses and STEM I was lost because I never had tackled this kind of difficulty before. I went into depression for couple of years. I was saved by Hamming's "You and Your research" and Learning how to learn. I restarted believing and learning again with growth mindset.

[crooked-v]

Same kind of thing here. I coasted almost all the way through high school, got given endless slack in my last year of high school because everyone knew I was 'smart', and instantly ran into major trouble in college.