The best way to find the perfect answer to any question is to receive it through intuition.
Intuitive guidance comes to us in many ways, but the best way is through strengthening our ability to receive answers during meditation. Developing perfect intuitive guidance is like strengthening a muscle. It takes time and it takes constant practice.
But it definitely is possible. The best way is first to learn to meditate deeply. I might suggest that you learn and practice the techniques of Kriya Yoga that Yogananda taught.