As per my experience what i have learned in trading, it is very difficult to gain profit in the bear market, but you can still gain some profit for that you have to spend a lot of time in front of your computer, when the price of any coin comes down 10 or 15 percent buy that and when the price stabilizes you can sell it. In this way to can gain 10% profit.
In bear market the limit sell and buy is the key to gain profits while in bull market simply holding can be the easy way to pick up some profits.