It's always true to be cautious with centralized exchanges and be responsible for our methods to store our bitcoin.
That was just an initial mistake at a time when we weren't familiar with centralized exchanges and now we understand much more about storing assets safely and I think almost a lot of people make mistakes when they first get to know crypto.
Even senior investors who are in the market for years, don't predict the market price movements because with their experience, they know that all predictions are wrong and can not help their investment portfolio.
History is important and they can analyze past cycles, how a bear market ends and how a new bull market starts, how a big bull run usually lasts. From all of these analyses from past records, they can build up their investment strategy within one market cycle, about 4 years, or longer, but they don't predict the market. Making predictions is for newbies who don't have enough experience and usually have high belief that they are 'smart' enough to make correct predictions.
Predictions are only for consideration and they are not completely true, why do people try to make predictions because they will have an idea when they want to buy or sell it. However, regarding the certainty value, it can change because the market is speculative and always runs outside of predictions. By looking at predictions from previous travel history, it will create a general picture so that it will make it a little easier for people to see whether the market is bearish or bullish.
If we understand Bitcoin's journey then predictions are only relied on as evaluation material and are not fully used as a benchmark. The bitcoin cycle shows a much stronger understanding where we can see which price increase process will be marked in which period. We can see this step if we understand the process of bitcoin's journey in the four-year cycle and adjust previous history.