It's scary to catch a falling knife, but you buy now and hold a few yrs, you're good to go. Even if it goes to 2-3K, u'll still make off like a bandit.
Actually, I am not saying that it is not worth it to try to catch a falling knife. I just know that it is scary, and frequently peeps get criticized for attempting to buy the dip when the bottom remains so uncertain.
In the long run, profit for sure, but it is just a matter of feeling good that you more or less got a decent price and did not waste too much fiat buying every single dip when you could have waited a bit longer.