While I agree with a lot of the criticisms that have been posted here (first and foremost that it is
exceedingly bad advice to
take advice on being successful from someone who is like six sigmas to the right of the curve on how their efforts were rewarded - it's like reading from Taylor Swift or Simone Biles or Usain Bolt about "to succeed you just need hard work and to believe!". As it's taken many, many years of therapy for me to internalize, if you get the majority of your self-worth through what you
do, you're gonna have a bad time...) I think it's also a good idea to keep in mind the general HN guideline of "Please respond to the strongest plausible interpretation of what someone says."
In that sense, I do strongly agree with the overall conclusion, "That's it, just two things, build stuff and do well in school." Building stuff for your own edification, and soaking up as much knowledge and relationships while you're in school, is really sound advice that works regardless of your end goal.