Yeah Me too. I experienced that too. I gained so much but it the end I have loss a lot. Maybe you cannot blink of an eye and make watch to market.
Well, it means that you are learning from your mistakes and making those failure as a ground for you to be enlightened, I myself don't let my big losses in life as failure but as a foundation for me to become braver and can handle and face things and challenges in the future.
I lose only when I do greed and do not wait for the good time and now my bravery is that I do not do greed and I wait for along time and wait for the time when the price of bitcoin will again start to rise.
I hope that this will happen because I have heard that after the mid of the year a good time comes for bitcoin and the price of each coin increase much higher.
This is the time to get out from perceptions like we are taking about this time. As long as you are trading with knowledge as to put and cover all the corners then you will get only profit and facing with loss is not permanent or necessary. Leave these perceptions and follow the market rules simply so that you will not consider the loss necessary before getting profit.