I have been building up a bankroll from $20 I found almost 2 months ago which was left a few years back when I played a little poker. Decided to put more of an effort into it this time and actually go beyond nl10 as well.
Anyway, I got bankroll up to $1100 before I decided to take a shot at nl50. I played for 2 hours, 450 hands and was down $165... Worst session ever. I'm going back to nl25 and not coming up again until I have $1200.

What is people's experience on the difference between nl25 and nl50?

Here is my graph from the last 20k hands when I moved my BR to Pokerstars. The top of the last "mountain" is when I took a shot at nl50.
It looks like the stocks of Full Tilt.