Important decisions carry risk and can unnerve and distract us.
One instinct is to delay, merely because doing something risky and distracting later is better than doing it now. That's the wrong strategy.
You should decide the moment that new information relevant to the decision is more expensive to obtain than the cost, the inaction and the anxiety of waiting.
Make high leverage decisions early, and profit from your ability to take advantage of commitments when others are still in limbo.