When most people tell you that it will go down from here it probably won't at least not straight down without a fake reversal. The majority can't be right because the majority never makes money on the market. If enough people turn bearish and short bitcoin whales will makes sure to squeeze them and make them lose everything.

The best strategy with bitcoin is not trying to catch the top or the bottom but start buying time it halves in value and selling every time it doubles the last ATH. Don't sell or buy everything but go slow and use 30% of your money every time it halves.
Following this strategy in 2018 you'd buy at 10k, 5k and have another 25% in case it goes to 2,5kUSD but it never did. In this bear market you'd buy at $35k, $17.5k and have another 30% waiting in case it goes around 8.5k.