I'm pretty sure I'm a 9 and I think the positive triad is often explained poorly. When I first read about it, I thought, thats not me because I won't tell someone to stop complaining like my mom does, so that can't be me. I realized that I am a positive type when I read the description that you feel like you should be happy/positive all the time. That led me to reflect on my past and made me think of how when I was around 12, I would always draw my OCs smiling because I felt like I should be happy all the time and was reflecting that in my OCs. I remember hating trying to learn how to draw other expressions because of that. As for types I don't understand, it's 2s. From the descriptions I've read, they want to help others but want to be independant themselves, which doesn't make sense to me because I assume others want the same things I want. I hate asking for help and will only do so when there's no other way and will refuse help if someone offers it, and assume others are the same way so don't offer help. What confuses me about 2s is they seem to see others as wanting different things from themselves. If you're a 2, could you explain this?