Hey AbyssalLizard!
Welcome to the site. :) I'm sorry to hear you're feeling so frustrated with your progress.
Janeel's suggestion is not a bad one, but something I'm noticing right off the bat is that most of your gestures still feel a bit stiff. Adding detail to stiff bases is not going to fix the problem of liveliness there. Your gestures will probably benefit immensely from more dramatic strokes as you sketch them.
Don't be afraid to make poses dramatic! Half the life in gesture drawings is the flow of the body, and the more pronounced the curves are, the better in this case.
Have a peek at Swen's gestures here, he does some great work and his gestures have wonderful notes with them. The difference between your gestures and his is mainly that his poses are far more exaggerated. Why not give that a shot, see how you progress with that? :)