The worst decision is to not make one at all.
Why do we put off decisions? Fear of being wrong.
Why are we so afraid? Often because we haven’t thought through the consequences.
But if we think through the consequences, we might not be so afraid to make a decision and try it out. The thing you decide on can be an experiment with an evaluation plan. Once you try out your decision and evaluate it, you can then decide to stay on that course or change.
Moving through life is decision making. Not making decisions causes stagnation.