One definition of Focus is “Maximum Clarity”. But, in life, having maximum clarity doesn’t always mean having absolute, perfect clarity. Focus can be a graduating scale.
Sometimes, having maximum clarity right now, may still seem a bit vague… maybe you are only 80% confident and clear. But that’s the best you’ve got right now so you make the best decision you can at the time with the values, motivation, and information available to you right now.
Thus you must make a decision with the most amount of clarity you have right now. Knowing that, as you move forward, things will come more into view and you can make adjustments.