Bitcoin is not doing as well as expected now. But it is also a good time for new investors. Because, everyone is thinking that Bitcoin will soon be more advanced than its previous position.
I think it depends on when you invested and what metrics you're watching if you say that Bitcoin is not doing well. 10 years ago I would have told you that $4,000 would be Bitcoin's peak. Sure, the price was only a couple dollars back then so the idea of a rise to being in the thousands was laughed at by many. The narrative from a better Western Union to a better version of Gold has changed that opinion for myself, as I honestly didn't think we'd see the adoption we have. Now with some pivoting to Bitcoin being "digital real estate" the sky is honestly the limit.
So I'm not sure what makes you think Bitcoin isn't doing well. It literally surpassed all expectations I had for it in 2017 as far as an investment and did it much faster than I thought possible. If you don't see what I see, zoom out. What we've witnessed over the last 10 years has truly been one of the most amazing investments I've witnessed and may possible end up being the greatest investment of my lifetime.