am i a bad person?

i feel like a terrible, selfish, and angry person. and i've been going through a lot recently so this feeling has latched on to the way i view other people, specifically the people i love. and i've tried to communicate my feelings with my close friends but i cant help feeling over and over again that they can't help because they're healthy people with no prolonged trauma; they can't understand what i'm going through. each time they tried to comfort me i keep hearing the same things. "that was in the past" "it'll help if you try to think more positively or think about the future." stuff like that. like no. it was in the past but its within me and its going to be within me forever. and i cant just think more positively. what they're saying sounds like bullshit. and it makes me angry that this is what they're saying to me. makes me think that they're over hearing about my trauma and feelings. and that makes me angry. im angry that they can't comprehend me, too. and the more this happens, the more desperate i am to hear the "right things." and more i lose out on that the more i dislike my friends, because a big part of friendship is about helping each other and comforting each other. but i also feel selfish that i feel angry towards them and how they're approaching my situation/feelings. but im sure they love me. i don't know what to do. i just keep switching back and forth. am i selfish for feeling angry at what they're saying? are my wants invalid? is it my want or my need? what do i say to them? you cant just tell someone who's comforting you, "oh, your comfort is making things worse."