People differ quite a bit in their ability to handle shore entries and exits. My husband and I found that freeing our hands helped a lot with balance and the ability to use each other to keep our footing. We got large caribiners (ex.
Workforce Hangalls Jumbo Carabiner - 51121 at The Home Depot) that we hooked fins and mask to our BCD on entry and exit -- fabulous!
I am also fairly worried about your camera. We both took some small spills into the rocks at times on entry and exit even with two hands. Would hate to break the camera! Also with you being so new to diving, remember most photographers make very poor buddies! In Bonaire, it's often just the two of you in the water. Bonaire is the one place my hubby leaves the camera at home and we just concentrate on the great diving.
Enjoy. (We're counting down the days to our return trip -- now 64!)