Watching Glee las night, I discovered a pearl of wisdom, the 2x2x2 Test. Before you do something that you have doubts about be because it does not resonate with you, ask yourself, "how will I feel about this in 2 days, in 2 months and in 2 years?"
After 2 days I might feel excited by the ambiguous feelings - "took a chance!" In 2 months I might say, "what was I thinking? That was not worth the risk." Two years from now I could easily hear myself saying, "I regret my choice, I have more self-worth than that."