Definitely right, with that downturn also makes you get those popular tokens because of the lowest price it has. Talking about the percentage of investment between btc and eth, I will choose the same percentage to both, because both are good in gaining profit. Downfall is just normal which we don't need to worry. We cannot stop those things because it is a matter of how demand it is or not.
Actually, a breakdown is something to think about and worry about if we buy it at a slightly higher price, because when the correction comes suddenly, then we have to spend a little longer waiting for market conditions to recover or to normalize.