Psychological barrier or just crap

[aslowjoe]

I have been playing interent poker for 3 years in Feb. I started out playing sng's then limit, then NL and MTT's back to SNG's then back to NL. Jack of all trades but master of none. Even though I have a huge bankroll I still play small limits.
With 3 days left to go in December my online profit stood at 99,400. A couple of bad days took me away from my plateau. Jan was a losing month. Feb wasnt a banner month but it got me slightly over $99,000 again.
March comes and I get off to a bad start again. This is the longest streak of break even I have ever had.
just random variance, a psychological barrier or maybe I have just been incredibly luck for a long time.