Your old classmates who flunked during the last two years probably didn’t post about it on social media. It’s not reflective of reality, just all curation.

Trust me, you’re doing fine. My bachelor took five years to finish, and plenty of people I’ve talked to have had similar situations.

As a normie (at least in these circles), I think I agree with your last point. Windows being heavily restricted in its customizability is a feature. A bad feature, but a feature nonetheless.