"오지랖은 넓어서, 내 생각만 하기도 모자랄 판에 네가 저질러놓은 일만 생각하고 있는 게 아주 짜증났거든." => (word for word) I was annoyed that my nature of trying to help with everyone's problem made me preoccupy myself with the problems you created when even devoting myself fully to my own issues wasn't enough. => I was annoyed at myself acting like some problem solver for everyone, preoccupying myself with problems you created when I was up to my neck with my own. 모자라다(v) means "to be not enough" or "to fall short". 판 in its simplest sense means a fltt board on which other things can be placed or built, but it is widely used in the extended sense of a situation one is subjected to (처지, 형편), or the way an important event (business, sports competetion, etc) is shaping up (판국). 판 is often used vaguely without a specific meaning, so "-는 판에" can usually be translated as "when ...". So 내 생각만 하기도 모자랄 판에 is like "when even devoting myself exclusively to my own business wouldn't be enough" or "when I'm too deep in my own problems". 오지랖이 넓다 is a traditional expression for "getting involved or nosing in on issues of other people". 오지랖 is the amount by which the traditional vest's front bottom extends out. If 오지랖 is wide, it can accidentally knock objects over, catch something, etc. - this is used as a metaphor for getting involved in other people's issues instead of only minding your own business.