My biggest issue is patience, the problem being that I came into crypto investing with the totally unrealistic expectation that I was going to be a millionaire overnight. When this didn't happen I started chopping and changing. Now after a few weeks of reading great articles like this one I've become a buy and Hodler, but am open to selling a few coins when the price is right, and of course buying a few coins when the price is right as well, like in the present down market. Thanks for your blunt advice, most of us need it.