When your partner complains they can’t screw other people because you’re away for a week, you might be dating someone you can’t fully trust long-term.

If you’re good at something, even if you don’t enjoy it, it might still make a good career. You don’t have to love what makes you money, just not hate it. If you’re good enough, you end up with a lot more free time for yourself. Doing what you love can also cause you to hate doing it as a hobby eventually. People don’t “love” their jobs. You don’t see them paying to do their job like they do for tennis lessons or sports events. You probably just tolerate your job, and that’s ok. Your life isn’t ruined.

Stay away from even legal drugs if you realize they affect you differently from the norm / other people. You might end up spending a couple nights in a hospital.

Alcohol is not really good for your body or mind.

Don’t just go for a shallow understanding of concepts. Learn and reason through them completely in your own way and you’ll never forget them. You’ll also be better prepared to use and extend them.

A solid sleep schedule is good for building a routine. A crazy sleep schedule can make you more creative. Choose a balance.

Know how food impacts you. You maybe eating something that drains you for decades without even realizing it. Introduce things one by one and see how you feel and think.

What people think about you does matter to an extent. It’s good to have confidence in yourself, but you can also be overconfident. It’s also ok to be a little judgmental at times about things that are important to you. You don’t have to be a dick about it though.