How do you interpret these results?

[lightfungus]

So, since I don't really have hours per session, these are going to be in chunks. But since I am not worried about dollar amounts or anything, just about winning sessions versus losing, I will be dividing everything by the first sessions value so that we get simply a pattern. For example, if I won 100 bucks the first time, that is "1", if I lost 150 bucks in another session that would be "-1.5"

Session results for a spread NL game over a 2 month period:

-1.00
2.93
-1.43
1.80
1.47
7.60
-2.73
9.51
-2.94
-1.69
-13.63 Probably over 5 sessions in Vegas, so averaged I get 5 sessions of -2.73
-2.73
-2.73
-2.73
-2.73
-2.73
5.82
-1.61
0.75
-2.94
9.26
7.75 and these two were the same day, with like a 3 hour break
-4.64
-3.27
4.02
-4.90
0.49
14.56


Are more losing sessions than winning ones bad? I have been worried that my winning sessions are so big, but I don't have many small winning sessions. Does that mean that the winning sessions are too heavily relied upon? Or is it okay to mill around until you get those nights with good tables (lots of idiotic action) and good cards and then maximize the opportunity? Is it a sign if you aren't beating the game a majority of the time and should not be playing there? Opinions are greatly appreciated...