Long term thinking is the name of the game, but every time I meet a newbie, my first concern is that they don't go nuts dumping all of their money into it.

Instead, we (not just myself) encourage DCA (dollar cost average) which is what your president kinda started to do when they started buying 1 BTC everyday.... Allegedly.

Basically, if you buy once while its high and buy again when its low, your average buy in is in between. The longer its low, the lower your average buy in and if its high one day after that, then you might have more money than what you put in, even if its not as high as when you bought that one time when it was high.

Here's the lopp resources for DCA:

https://www.lopp.net/bitcoin-information/buying-earning.html#strategies