I think not to catch the bottom, it is not exactly possible to catch , we do not even know where it is , I think to buy cryptocurrency at such levels as now you need , but only buy parts of the levels and you are sure to find the bottom!
This discussion will be ignored if prices jump by x20, x50 or even x100!
Whoever enters now would have thought in the long run that it was the perfect entry!
You can hardly predict the bottom, you can use TA to maximize the number of hits and that's all.
By being careful about the money you can lose and your ability to hold, there is nothing to fear.
Another thing that can be done is to go on buying each dump, so you will pay off what you have lost
And then any appreciation will be rewarding.