Younger like age? Or younger like newer to the platform?

For the latter, it’s "this isn’t Instagram, be yourself and don’t worry about what others think. Also, hide vote weights and sort by new (at least in comments). Don’t let others sway your opinion of a post or comment. Make up your own mind. Lemmy doesn’t have a Karma system. Be conservative with your downvotes, but don’t be afraid to use them if someone is rude or off-topic. Be generous with upvotes, but also be willing to block on a moment’s notice — browse /all in the feed, see all the wacky new communities, and block the ones you have no interest in.

For age? Don’t stress what you don’t need to. I’m not religious, but you can use the serenity prayer (grant me the courage to accept what I can’t change and the wisdom to know the difference… there’s another part but you get the idea). Leave for work/school/appointments early and let the crazy people cut you off. Give them space. Remember that the morgue is full of people who had the right of way. Show respect and treat people decently until they show you otherwise. Don’t be afraid to love, your friends, a lover, a few lovers along the way, your family, let them all know you care. And work stops at the door. If you see your boss outside of work, they’re just another person. Don’t disrespect them, but also don’t kiss their ass. You might have to do that at work, but smile and use their first name. If they say something, remind them that we are not our jobs, we are individuals first. (Or maybe don’t see people outside of work you aren’t friendly with, since you do have to work with them. Know when to call situations like that.)