If you are off-site, count each rep slowly & deliberately. It's best if you do this out loud! Who cares what that chick on the dreadmill thinks?
Remember to keep your elbows up. Elbows should be on the same plane of motion as your wrists and shoulders. If your wrist is bent, it's a pretty good bet your elbow is down. This means you are putting sheering forces on your shoulder joints. Your shoulders hate to be weighted (i.e. bands) while externally and internally rotating.
If you are advanced, do your situps like this. (Hell, you can do it like this - NOT ENTIRELY SAFE FOR WORK/KIDS - if you like/dare. Honestly I HATE this about the fitness industry, but the thought of it made me LOL!).
We aren't going to count the burpees. I think you'll agree, if you've done this before, it's awkward.
There should be a deliberate pause at the top of each sideup, SBE & crunch.