First of all, I don’t think it is possible to successfully time the market on every move. But, you can follow the market and change. You may miss the top and bottom but still get your direction correct.
In this post, while I was still skeptical that trade deal will be done but changed my market outlook. Sure, I missed the absolute bottom, but I have participated in the upside move.
Everyone has their style, time horizon, capital and skill set. You play to the best of the hand you got. Arguing only my style is best and others are wrong is waste of time. If you think something is not for you… then you do what works for you.