What is your pre flop fold precentage?
What kind of hands are you seeing flops with?
Are you raising a lot preflop?
For example, with Q-A, if you raise pre-flop, get 1 or 2 callers and flop a Q and avoid a K, your looking pretty damn good.

I typically fold between 75 and 80% of my hands preflop.

Of course a lot of factors (table texure, opponents habits, position etc.)
make up that number.

I have not been playing online for much longer than you but have been playing poker for several years, and am still plugging leaks.
At first, you plug one leak, another one springs out, you got to just try and stay afloat