When you feel your way blindly, it means you are blindly navigating through something without any clear idea or guidance. It can be frustrating, and people often use this phrase to describe situations where they feel lost or uncertain. However, there are various other phrases that can be used as synonyms for this phrase. Some of them include "fumble in the dark," "grope around," "feel around," "search without direction," and "go by instinct." By using synonyms, you can add variety to your writing, and convey a more exact and precise way of expressing your ideas or feelings, especially when you are describing how you are navigating through something blindly.