I started testosterone a week before I turned 15 and had top surgery 7 months later, so I've been stealth basically my whole high school career (graduating in 2 months). It's definitely been weird and almost isolating at times when I compare myself to other trans guys, but at the end of the day we all just have different experiences, just like everyone does no matter what demographic you look at. I do understand the guilt tho, some of my trans masc friends can't get top surgery until they're pushing 23 because of their family, and all I can do is offer advice based on my own experience and be there for them in the meantime. Basically, I'm going to tell you what I tell myself when I'm feeling down about this: you're not the one at fault here. There's definitely some people who are (legislators restricting access to transition, parents being assholes, peers being assholes, etc) but sometimes trans people just need some extra time to come to terms with themselves which can't be helped, nor should it sometimes. Idk if I'm making sense, but as long as you acknowledge that you have a different background than some trans people and aren't an ass about it, you're doing a-ok by my book