Taking too many high-level math classes in my first year of college (including a really dense graduate abstract algebra course)
Not getting therapy while in college (rectified during grad school)
Not applying for internships in college (also rectified during grad school)
Turning down a promising summer research project right before my PhD. I thought that summer was a bit overloaded and I was going to do research during the PhD anyway, but it took 1.5 years of classes and qualifying exams before really getting started with research, so in retrospect I should have dropped other things from that summer instead.
Choosing a (somewhat) wrong field for grad school—I went into stats, but the main part of stats that interests me is machine learning, so I should have probably gone into CS.
Not living on campus with friends during college
Taking too many high-level math classes in my first year of college (including a really dense graduate abstract algebra course)
Not getting therapy while in college (rectified during grad school)
Not applying for internships in college (also rectified during grad school)
Turning down a promising summer research project right before my PhD. I thought that summer was a bit overloaded and I was going to do research during the PhD anyway, but it took 1.5 years of classes and qualifying exams before really getting started with research, so in retrospect I should have dropped other things from that summer instead.
Choosing a (somewhat) wrong field for grad school—I went into stats, but the main part of stats that interests me is machine learning, so I should have probably gone into CS.