What does everyone else do when it comes to altcoins?
What was you initial goal when you purchased those altcoins? Did you intend to hold for how long or until making how much profit over it? You should have a plan and stick to it. However, if you don't have any, and considering how much progress you have already made you should cashout at least a percentage of your profits, as a guarantee you won't lose the initial investment anymore. Moreover, you can also use part of the profit made through altcoins to invest in Bitcoin, which won't return you x4, x10 profitability, but it's the most assured cryptocurrency to hold without worries of a unrecoverable dump to zero on the next day.Is it too early to take it out once you have doubled your money , is waiting till you have done a 5x or more too greedy?
Many investors don't even achieve to double their money through altcoin investments, due to investing in scammy projects or waiting too long to cashout. You have already done 5x in one investment and x10 on another. That is huge! In my opinion, to seek more from this right now is indeed greed. If I were you, I would gather the fruits and prepare myself for the next sowing. 
