Even though it’s crazy late, if you have disposable income, might want to research the cryptoes.
The keyword here is "disposable". When you buy a bitcoin, you are buying nothing but hype. The only reason they have value is because everyone thinks they have value. They could crash in a minute... or they could keep rising. No one knows. It is an extremely risky bet to make.
Before you spend money on bitcoin, you should read about "tulip mania". This was a period of time when the value of tulips rose precipitously in the 1500s, and then crashed suddenly. Millions were made, and millions were lost... all over something with little intrinsic value.
Disposable income means money that you don't mind flushing down the toilet with nothing to show for it. If your money is truly disposable, then by all means buy bitcoin. I wouldn't risk my retirement on it.