I started trading in 1990 and I am always concerned about the party ending. What I've always done is when I'm making money is pay off all debt and free myself of the burden of having to make money. That means setting aside a 6 month reserve for monthly expenses. Because of this cushion I can adjust to tough trading conditions. Meaning doing less size and trading .I might have to adjust my risk paraments and sweat out early morning lack of liquidity and wait for the trend to reassert itself or just lower my profit targets and instead of going for 1/2's and 3/4's , go for less, maybe I have to take profits sooner and especially into any strenght or weakness.I have too say other than the summer months over the years and I believe a period in the early 90's the market has always allowed traders the opportunity to make profits from it.Whether you not you made any money was related to your own performance and not because of the market. The history of the market is such there is always something happening or some unknown future event that gives traders opportunities to make money. I have confidence in my abilities and knowledge to trade anything,even though most of my experience is in equities and index futures. So even though I might go thru several months of negative profitability I have confidence that market conditions will change and my profitability will re-emerge and by the end of the year I will have met my personal financial goals. The only way you can gain this confidence is by experiencing the ups and downs of trading for several years. I remember , I kept track of all my trades , winning percentage....cents/share....losses over a point ...etc...etc....My first 100 trades I did when I started I made money on 51% . At random over the years I would see what my winning percentage was and you know what? Out of any 100 trades in a row my winning percentage has always been around 50 percent. I would have thought after years of experience it would have improved ,but my trading profits have increased every year basically because I trade much more capital. So I'm always concerned about liquidity and trading conditions but I also know there is light at the end of the tunnel during those tuff times and its not an on coming train.