Altcoins are really scary, if you can do some research you will see many good altcoins that had very good start and value in 2018 and are still alive today but we never heard anything good from them anymore for some reasons, they are now like ghosts, honestly altcoin investment is more scary, this is why its better to always take profit, most especially from new altcoins, Profit is Profit, either big or small.
That is why i chose low risk coins only as new coins with no development and unknown teams have low chances of success so staying in top coins is the right thing to do because every bull wave is going to increase their value massively.