I used to be very unhappy. I would often be told that my liking the stuff i like (aka girly things) would make me a bad person, and I never saw any reason not to take those words to heart, so I used to suffer loads :( It has made me over time choose to be more self absorbed a bit, as a defense against the type of suffering and guilt I would feel over reading that type of stuff.
I still prefer to be as kind a person as I can be even now, though, cuz i know this world needs kind people and i think caring in general is just in my nature (i'm not even known to discriminate against people i don't relate to at all, unless of course, they're just not nice people. traits i don't relate to, like being transgender or being into masculine things a lot, i don't really feel any reason to dislike people for those types of things and i don't see why anyone would waste they're fabric of being being against people for stuff like that o_o; i think people should care if people are being nice or not more, not their personal life style choices that don't seem to harm anyone...).
But, in general, i try not to think about nice or mean as much as i used to now. It does trigger my autism, also sometimes i have to be firm about having my own way about things more myself now too (whether or not it really seems 'fair' to others, but, i think, if i generally stay calm, people tend to respect my own life choices more).
Also, so i don't get all triggered over people in general since I DO still kinda care about that stuff a whole lot time to time, i do try to limit my usage of forums and socializing with other people more now (even though i've been meeting a lot more people who seem a lot moreso pro girlyness/girly girls in more resent years).
In general, being a loner has been a bit of an overall source of happiness and relaxation for me more so now. It may not work for everyone, but with the stress and anxiety i've generally went through, especially having autism hasn't really helped with it (though i'm sure there are also very GOOD things about my condition too....), it does seem being alone a bit can be a good thing for me. Or just not chatting online as much now (i still like chatting online somewhat, i have good friends on here i value a lot, but i do know i have my limits, as i've been triggered often. i actually like socializing irl more now, since i haven't been gaven as much reason to dislike that in the past xD; but, in general, being around others irl can get overwhelming a bit for me too. its nice to have me time now^^)
(btw, whether or not i really care about 'nice' and 'mean' as much i used to, i still plain don't like the idea of disliking people for having different lifestyle tastes. it seems pointless to me. hopefully i'll always feel that way. people getting worked up about stuff like that just doesn't help anything anyways o_o;; )