People forget that bitcoin doesn't have to be this much of a day trader product, you can literally use bitcoin yourself if you want to spend it on anything OR the most logical thing it is a very scarce commodity so you can hold it. If you are afraid of volatility and you are bothered by the fact that you may end up losing money wherever you want to buy bitcoin, just hold it.
I personally have the same coins I had in 2015 let alone the new ones I purchased so I am never bothered by the volatility, I had bitcoin during 2017 and I had it during 2018 and I still have it. I did spent some of it, I did bought a bit more later, but in the end I do have even more bitcoins than I started all thanks to me not selling my coins because volatility could have hurt my results.
That is without a doubt one way to handle the volatility of bitcoin but you can not really expect that everyone does the same as you, to begin with you seem to be very comfortable with the amount of bitcoin that you are holding, something that is not true for the majority of people in this forum.
Also you can hold your coins regardless of the market conditions because I'm sure that you are convinced about the future of bitcoin but we must understand that unlike you the majority of the people in the market do not really believe in bitcoin that much, they are here just because they want to earn money in a fast way and holding your coins is not really their preferred method to do that.