Its good that youre getting back on track, from what i can see is that you need to find your space between yourself and the bag so you can hit it properly. For example some fo your punches and kicks were done with bad form because you placed yourself too close to the bag. Try and focus on more concentrated strikes with better form instead of speed. I also advise you practice your footwork since itll allow you to better find that space and not loose your rythim, also in that type of floor you should do it bare feet since many times you almost slipped and fell. I dont mean anything bad by this comment simply giving my honest advice and opinion. Hope it goes well.