talking about bear market make me regret not buy/invest in good project for example energi coin, when bearish it was 2000 satoshi now it touching 60k satoshi.

you messed up not bought at bearish, it could be knowledge by experience next to buy when bearish time happen.
Like everyone said : "buy dip and sell when high". Dip market is time to shoping not to sell our fund.
This is a nice strategy for everyone around to buy Bitcoin when the market value is down. You are able to do so, you would need very little money to own huge amount of Bitcoin. This will make you able enough to cash out big and I mean very big when the market is bullish like it is today. There are always great chances of making money only if you want to make it.