personally I did not sell any BTC at all,, even if the last time I bought was around $4k,, that means I am technically in a loss right now, but I believe and still believe I am making profit from BTC,
during the big market crash i was able to buy LTC and ETHER at $42 and $220 because I believe it LTC and ETHER will go back to $92 and $400 very soon...
this big dump was a great chance for small investors to get some profit,,, Because this is only the beginning for the crypto world,,, more tha 80% of the world population does not know anything about cryptocurrencies,, once this number becomes 50% then you will see something else that you never thought it will happen,, Believe me.