I've been there. You've been there. From the smallest of decisions like "what brand of toilet paper to buy" (with or without a coupon) to "should I leave this job that pays all my bills but makes me feel crappy?"....we practice the art of making decisions constantly.
When I work with a client who is at a loss on how to answer a question, or doesn't know what they really feel/mean, I tell them, "place your hand over your heart (or solar plexus area)." Immediately, the person shifts into a softer, less anxious mode. They connect with their body. The mind, which had been in full control up to this moment, suddenly is in the back seat. The solidity of body wisdom takes over.
It really is that simple. The next time you find yourself fraught with anxiety over a decision, pause. Place your hand over your heart and pause some more. Focus on the sensation of your hand touching your chest; feel the pulse of your heart. Pause some more.
Go ahead, pledge allegiance to your self and wisdom of your body/soul and leave the mind behind. The decision will be known.