500BB loss possible due to chance? PT stats included

[Psyonic]

So ya... I'd like to believe that I've mostly just been having a bad run, but I'm seriously pushing 600BB now. I was playing at 2/4 getting raped basically, so I dropped down to 1/2, which I used to do really well at. I feel completely comfortable here, and yet since I've came down I've already dropped another 150BB. Tonight alone I dropped 80BB. I've also increased my study time lately, I have PT and GT+ and use them as best I can... I don't know what else to do. Out of the 5 or 6 times I got KK tonight, I only won 1. That same theme happened with every other good hand. I don't want this to be a whine post... I guess I'll put my PT stats on here and see what people think of them.