For me if i gain profit i just sell it and not hold because its safe for those slowly but surely profit. Than hold the price keep dropping out but it depend also for altcoins your gonna choice.
when you have the opportunity to increase the income that you have in a good way, and a small risk, I think that is something to consider, or something that needs to be done. until now, I have not found the right way to increase the income that I have, and hold the coins that I have. but, when I have the opportunity I will certainly do it.