It is possible to trade in bear or bull market you just need to adopt your strategy to the market.

For me it is easier to trade and spot good entry point in bear market. If you made a mistake in the end bull market it will cost you so much more than a mistake in bear market.

Be patient and always follow your strategy not a strategy of someone else who is selling a signals. If someone is selling a signals be sure those signals are not good enough. If they were there will be no point in selling them.