For newbies to the crypto space, I would suggest setting up a DCA (dollar cost average) purchase program for BTC, as a start.

Buy $25 or $50 or whatever you can reasonably afford, each week, EVERY week, no matter what the price is doing.

Do it for at least a year, and see what you get.

Don't go "all in" or try to time the market. Almost NOBODY can time a market, and those that sometimes manage to do so are almost always just lucky.