Yea i lost couple bucks back in time when i found bitcoin and started to get some, the reason behind loosing was since i didn't know if you keep your balance in your wallet will lead into decreasing/increasing in my case in that time bitcoin was in decreasing state, so i lost some bucks.
Well we are not the i just convert few bitcoin before the price dump happen this week.. and i have still bticoin but i decided to hold it and wait more days or weeks before i buy bitcoin or sell few bitcoins depends of the movement of the price. For now lets pray that the price will increase back to 600 level..