That is why I think yearly highs are important too, between the yearly lows and yearly highs we can see that bitcoin is something that moves a lot in a year, it goes up and down a lot in a single year which tells you there is more chance to trade bitcoin daily than there is a chance to just buy and let it be.
It's easier said than done. Trading daily or swing trading needs time and skills, which most people don't have. You can, of course, choose to do it, but you need to prepare with the stress, risk, money management and so on. If it were me, I'd not do it. Long-term trading is probably the best option.
What if other things might happen? For example, in 3 years that you left your 1 btc, it turns to zero value?
Maybe, there is possibility for it to go up since it will be halve every four years. However, we can also deny the fact that it may goes down. If you logically think, you will never leave bitcoin on your wallet specially if you have stop loss. If there is stop loss, you can limit your risk also.
It might worth zero in 3 years, but the possibility is so small. If we talk about price history, we got higher low (compared to the previous ATL).
You can separate your Bitcoin between long term hold and for trading. Just because you trade it doesn't mean you can't hold it.