sounds like you may be trying to push your edge I used to do this also after a big win.After a win I usually switch games so form tourneys to plo cash or from cash to sngs seems to help with my down swing(of course after a big win $150+ I take 10% and "donk" it back to the community)this works for me but the idea is that you find some way that can "reset" your thinking after a win hope this helps...