I ain't trying to scare you, but if you live a statistically average life you're about to hit a downward trend in your mood which will last a couple of decades. By the time you're thirty you'll likely have a boss, a spouse and kids, all of whose needs will have to come before yours. Things start to improve again at age 47 when the kids have moved out and you're at the top of your career.

Maintain your friendships. It's so easy to make them a low priority, but having good friends and being a good friend to them is the way to make it through.

Control your sex drive or it will be used to control you, and invariably very much against your own best interests.

I got lucky, and found my own partner quite early on (28 years together, now). But I did not stop observing other couples around me, and those men who failed to adequately control their own sex drive were the ones who almost always were taken advantage of and manipulated against their own best interests.

Ironically, RP (and to an extent, BP) information is a great base to understand how you can and will be manipulated, with MGTOW a good framework to insulate yourself against manipulation. Just understand that blaming others is a toxic and counterproductive path, seek to improve yourself to make RP/BP truths work with you and your best interests, and not against you.

This is shallow, but here it is... When you are dating to marry look at the womans mother to see what her weight will probably be like after having kids. If her parents are big, she will probably be big.

Start listening to Dr Michael Greger. You'll thank yourself at 40.

When making your worldviews, difficult as it might be, consider listening to the news from original source. Say, for China related stories, look up Chinese publications, translate them to a couple of other languages you know. Ask yourself what each narrator or writer wants you to think and do after listening to their side of the story. This habit will make traveling a better experience in many ways.

Write a journal everyday. Write a meal and snack journal everyday and include any alcohol, drug as well in it. Review them every now and then. Never miss any vaccine. The journals will come in handy for everything from planning weight loss, effectiveness of any diet or exercise, sicknesses, mental health issues, to helping your doctors help you better. Course correction will get simpler and ever easier.

If you ever think of kids, do consider stopping with one. This boiling, frying planet we have made ourselves need not be inflicted on any more than one little one of yours.