Well, that is why you should be picking a dropped knife instead of a dropping knife. You really have to understand some things at least when it comes to trading to be able to take advantage of a market trend, and it is not necessary that you have to know it all, just know some basics when it comes to investment, that will help you in making the right decisions.
A market that is going down will always at some point tend to switch back in trend, so the best thing is never to be in a haste, allow the market to develop, know that things can still go awry, plan ahead in case of all that, and when you at least know you are picking from historical bottom support, that even makes it an easy hold.
Yeah, when we come to the market first, we don't need to know everything. We learn about anything here from time to time, the more we practice, the more we get. Take your step easy, but don't forget to learn so you can know what to do when the market is going down.