Just because there is a possibility that it could go down some more if something major happens doesn't change that unless something unexpected happens we would be going up again. So, just focus on the fact that we could profit very soon and make your moves accordingly.
Altcoin collapsing like Luna? yes it could happen even if it is on the top 10 or top 20. They are so risky riht now specially with how Luna bring the market down.
So it's better to just move to bitcoin for now until the altcoin market calms. If bitcoin goes down though, it will not have that huge dump, smart investors knows when to buy and fill their bags. That is when the price goes down hard, so let's say by chance the price dips to $25k, for sure it will recover because that is a golden opportunity to buy bitcoin at a discounted rate.