It's a cruel world. Point blank. It's a dog eat dog world. People don't give a shit about you. People are more concerned with their own happiness than they are with yours. That goes for you too, so don't make yourself a white knight thinking you're better than them. We're all human. We're all slaves to human nature.
Watch who you make yourself vulnerable to. Let them and people will take advantage of you. Be careful what you let people know. Your words are all that you have.
Killing your feelz doesn't mean you have to go full dark triad. Dark triad traits are necessary at times in order for you to get what you want. Give people agency. People are in control of their own lives, don't suppress your own goals so that others can achieve theirs. Don't sacrifice your own happiness for people whose lives you have no investment in.
I say this having grown up a certified Good Guy™. I was raised by narcissistic parents. A dad who didn't really invest in my childhood and an overbearing, overtly religious mother. They always loved me and I still love them, they just didn't do a good job in raising their children. I grew up sheltered. Knowing how their parents raised them, I know it was out of ignorance. They gave me my genes and I'm lucky for that. I could be in a much more fucked up place.
Growing up, I never understood human nature and never understood shit tests for what they were. Not just from girls. I never realized it when insecure faggots were trying to AMOG me. I wanted to see good in everyone. Don't do that. The good get taken advantage of and are laughed at.
The red pill opened my eyes to the cruelty of human nature and for that, I'm forever grateful. TRP saved my life and I've never felt more in control of my destiny.
Look out for yourself first. Happy people are the best people, remember that.