A few things, such as: 1. The perfect is the enemy of the good. Finishing things is more important than perfecting them. 2. It's who you know rather than what

A few things, such as: 1. The perfect is the enemy of the good. Finishing things is more important than perfecting them. 2. It's who you know rather than what you know. Should have socialised more in school/college/university. 3. That I probably should have looked into things like internships when I was still in university, since a big flashy name on your CV early on opens a lot of doors. 4. No one's irreplaceable, and anyone's working/life situation could change at the drop of a hat, so constantly be learning to make sure you're not caught unaware when it happens. 5. Money should be your primary goal when looking for a job/career, and you should try to maximise the amount you make at every corner, and invest what remains in things you actually care about. Passion is for chumps.