theses stats and graphs don't really give good indicators of how you are doing/playing.. The graph itself is useless, the stats below are moderately helpful. However 300 games is a very small sample for HU hypers, and depending on the buyin you play and population tendencies, your stats from the SB or BB could be too loose/tight or not limping enough in the SB when blinds are higher. Point is, it's hard to point out anything here. Instead, try to work out what your weak points are in game.
To find out weak points, ask yourself simple questions like, "why am i 3betting this player?" if you don't know the answer to that then you have something to work on. It could also be something like "what types of ranges should i be getting it in pre flop early with no reads?". Whatever it is work on that, post specific questions relating to that, otherwise you will tend to get really bad answers in here when you post things like this...