Sucking.

Guys I need advice.

I suck at sucking my boyfriends did while sitting right infront of him. I can suck it easy from the side but he says I “use to much teeth” when I suck his dick while facing him!

What do I do? Help!!! How do I “use less teeth”

FYI. He has a pretty thick dick so it makes it harder because it takes up a lot of space in my mouth.