I lock-in my first round of profits on SHIB at a 10x couple days ago. Stylishly i've learned how important and secured it is to have one's portfolio diversified into many quality coins since coming aboard.
Even when most altcoins are crashing, a few of the quality ones can give huge gains. I'm compounding my gains by rolling profits into unpumped coins at a cheaper rate.
I don't care how many percentage will be added by year end, I just want to live for tomorrow first as many opportunities are under way.
You follow a very sensible strategy of diversifying your money between different coins. This way you decrease your risk as like you said when a few coins are falling, some others can keep your portfolio afloat. It is better to hold a part of your money in risky altcoins, and a bigger part in some mainstream currencies of promising projects.
Also it is very important not to be greedy and lock-in profit.