Trade of course, no one bothers you! But in a falling market a lot of money is not earned and that is a fact. And even to professional experts in this project it is not very easy to do this.
In a falling market there is an opportunity to earn very well. But the trouble is that the market does not fall. And it does not grow. Its impossible to make money in a flat market. Maybe scalpers make money, but I haven't heard that scalpers operate on the crypto market.
I agree that the opportunity to make a profit is possible only in a growing market; or vice versa, it will be more beneficial in a falling market, I dont know any other options.