I feel you because I'm also invest in bitcoin but I still hold until know. Someday it will rise again hope in 4th quarter of the year. Patience is the one key to have a successful goal. I did not check the price of bitcoin daily because it can make me disappoint little by little.
It is true. Checking the market everyday especially during dip is depressing. It can actually cause anxiety and may result in panic selling. But you have to remember that bitcoin was never intended for a short term investment. It was intended for a long term hold and investment therefore, the lose you have right now may actually turn into profit in the following years. Moreover, if you are really worried about the fall of bitcoin, then you should try turning to altcoins for the moment. This may help you if you prefer a short term hold. Short term trade using altcoins will help you make profit despite the ups and downs of the market.