what I did did buy when prices hit bottom, but there is no guarantee that prices continue to rise,
but it doesn't matter if you hold coins from big projects like XRP and ETH, your capital can return and even get a profit. HODL!
You must continue your holding and that doesn't mean that you may skip buying at dips

. If you are equipped with excess money for investment purposes then always be awaken to catch all possible lower prices. For this, you should not go all-at-once. When you buy for only 10% of available capital then you may get 10 different prices through out the year. Which means you might have got some bitcoins below $4k as well, for example.
At the same time, there are too many people who think that when they sell bitcoin the price is going up somehow and when they buy it it always goes down. Well, there is a reason for that, the market doesn't move depending on you, you move depending on the market and if you do buy at the very bottom, that is your own fault. Why buy out of nowhere on a regular day? Why would you want to spend any money on something that has premium price on it? You should wait until it crashes and anytime you buy before a huge crash, is a wrong time to buy.