In my case I have not achieved any big win either, but I mainly play HLHE cash poker, and although I have had good sessions and ended the day with 10 stack or more profit, I do not consider those profits as a real profit, because they are due to the variance, in this case positive for me and don't cash them out that they. I keep them in the bankroll. I care more about the expected and real profits at the end of the month and the WR/Hr.