Law of attraction question: taking action?

A few years ago I got really into the Law of Attraction ("The Secret", Abraham-Hicks, Shakti Gawain etc.) and had amazing success. I then became complacent and lapsed, and things fell apart.

I'm now back, but I have a question about taking action that I hope to get some insight on.

If you have something to do that you are dreading (making a phone call, sending an email etc.), something that will have an outcome that relates to a desire, is is better to hold off, try some exercises and wait until you feel like you have a better vibration? Or is this just prevaricating? Should you take the action in the hope that getting it out of the way will improve your vibration?

Thanks!

P.S. This might not be the right category for this, if you want to suggest a better one please go ahead.