I need tips on how to go down on my man right?!!!

Ren • 21 • SoFlo • College Life • Vegan • Artist
So tonight I don't know what came over me, I am currently on day 5 of my cycle and we were getting it on and all of a sudden I had the intense urge to eat his brains out and really wanted him to come, but he didn't because he said I used my teeth to much and told me to stop and pulled me off. 
Can someone please give me some tips because I feel like I don't have the confidence to try it again. I was so into it , very frisky and happy to do it and put so much effort!! Lol I'm kind of sad and disappointed in myself.