Is it really the best way to invest your money?
Forget best or worse, bitcoin is not even an investment. Bitcoin is a currency and as the only existing decentralized censorship resistant payment system it offers a lot of utilities for people all around the world and utility means intrinsic value.
That's been the biggest problem newbies have been facing, bitcoin is advertised to them as an investment that will give them a lot of money out of thin air!
It's true that the payment system was the real intention of why Satoshi created it but we all know that it's really not what has given Bitcoin the value it has today. It derives its value from the perceived angle of investment. It's not only newbies who get on the bandwagon that it's an investment opportunity, veterans too are involved. If Bitcoin were solely for decentralized payment system as conceived then it should be like stable coins whose value remain the same or almost the same year in and year out.