Ongoing Wrist Problem

I have been practicing Yoga for about five years now. One thing that has not changed since day 1 is the feeling my wrists feel in Full Wheel. I have tried every trick in the book: parallel your feet, don't let your knees splay outward, draw your chest forward, shoulders above the wrist. I can almost dare say that I do a PERFECT WHEEL! But man my wrist continue to hurt. In most classes, you can't do just one, instructor will ask for three. My wrist are done after the first but of course, Miss Pushy Pushy has to keep going and suffer.

I think my wrists are pretty small and not in scale with the rest of my frame, could that be it? I have tried other alternatives like grabbing my instructor's ankles while they stand over me or setting up blocks against the wall and place my hands on them instead of the floor but that just seems like too much work for me to do at the end of class. I think I may have to just do one wheel and the rest bridge poses. I hope I am not causing long-term damage to my wrist bones.