i am on my 43/57 tray, and i wear each tray one week each. the tray im wearing at the moment is unbelievably painful, the edges are really sharp no matter how much i try to file it down and at this point just wearing them will make my mouth bleed where they cut at it, and my tongue is covered in bumps and is numb :( i have 3 days until i would have switched this tray out, is it safe to start wearing 44 early and then just continue from my normal schedule ?