Why do you guys have to start investing when the price is almost on the top? If you believe in crypto you should have invested it before already even if it is in bearish trend so that you can take a good profit. You just waste a good opportunity to come to you just because you doubt that Bitcoin will be gone forever. You haven't here before if you really doubt the capability of Bitcoin.
Crypto investment, especially bitcoin, requires not only knowledge but also the courage to trade because of the very fast price movements that should not be in doubt.
In my opinion it is never too late in crypto investment, because there is no certainty when to stop rising or when it will go down. So, until the end of the year crypto prices continued to rise, investment is now still profitable.