You can never really know what the market could do, it's just that you have to be prepared. It's you against the market. Market doesn't follow you. We already have multiple breakthrough with the market and it might do another one or come crashing down again. It's something that we need to be prepared for, for sure, and it's up to you to do something about it. Be firm or not, no one is certain.
Even with someone who has a high win rate with trading can make a mistake because of the unpredictability. You should know that by now.