If your strategy trades often - couple of times a day - you really need to include commission and a minimal slippage (at least bid-ask spread), to get a good feel if it's working or not. If you didn't do that, don't set your hopes too high - it looks too good to be true. The %win and w/l ratio are reflected by your equity curve, so don't worry about it, as long as you used a constant buying power, and your curve looks like a straight line, hopefully up.
You W/L ratio doesn't matter. All that matters is your net average % return per trade. With good money management you could lose the majority of the time and still be profitable.