I need help:/ I'm 13 and my back teeth are coming in(and have been coming in for almost 3 years) and are pushing my teeth together and it's veeerrryyyy painful. My teeth are crossing over each other on the bottom but my top teeth are mostly straight except my canine tooth is rotated and my front teeth are squishing together. My dentist said about four months ago that I might need a retainer but we would have to wait to see. Please help;(