a problem ive seen with my online record even with pokertracker is i never let go of monster hole cards such as AK or KQs even after the flop , being able to make laydowns to obvious greater hands is a hard part of playing ... and a part even i am learning the hard way

everything good comes in time , and i think as long as you play consistent and make the right laydowns youll be fine

and if you have been following SSHE and various other poker books youd notice to start at lower limit tables , even having something like 200-300 for 1-2 wont cover a losing streak.
start small and build confidence , move up when you have more to cover yourself and play to survive