Checking charts can be useful, but understanding what caused significant market shifts in the past and calculating how much influence such events have now and in the coming years is also very important.
When you read about the price history you'll see years like 2019 where Bitcoin peaked at just over $19000 from a thousand dollars.
That was 2017.
2019 was a bear period just like the year before it, leading up to the bull run of late 2020/2021.