If you haven't sold, then you haven't loss anything. Stop comparing the highest price to what the price is now. You didn't sell at the top so it was never "your" money. Until the money is in your hands, it was never yours. Just comparing the highs to the lows will make you go crazy.
You are right, if you haven't sold your coins then its not a lose yet and as long as you hold and buy at dip to take your average then you'll be good in time. Just don't sell it if you can afford to recover it.