Pay focus on what is triggering your fear call to action. While your underlying belief may well not manifest as a fear, there may well perceived as pattern in types of situations that induce you to have afraid. This pattern end up being a clue to what your underlying belief is now. For example, a panic or anxiety that happens in social situations, business meetings, type of performance situations, in many cases can point along with belief of "I'm not good enough." Situations which activated thoughts of inadequacy triggered a response - in this case difficulties.
Few end up being marriages running their course without ever having a misstep. We're only human and we make mistakes and have flaws just in case two of us try to exist together, there will be disagreements and Discord. But what differentiates an effective union from one that leads to divorce happens when you together with all that discord.