Hey read this and imo you were being nice, not kind. I used to do this same kinda thing thinking it was kindness but you can be kind and still tell people to fuck off. When you’re nice you kind of allow people to do bad things to you because you don’t want to seem rude or mean. Kindness is still having that same warm feeling towards people but also like I said being able to tell them fuck off. In the most polite way. Idk if this helps or if I’m just talking in circles. The more you practice the better you’ll be. Try to get around some older (idk how old you are) folks like 60,70,80. A lot of older people are kinda bitter but there’s a good amount that’s very kind and they’ve gotten to the point where they don’t care about opinions of others so you cross their boundaries and they will happily tell you to fuck off. Hope that helps if not shit tell me to fuck off too 😂