What are you saying yes to at this moment? What is that yes is giving you? What are you saying no to? What are you getting from saying no? We sometimes have the things we need to be saying yes to and the things we need to say no to mixed up. The best way to check it out is meditate first. Clear and calm your mind. (try this one http://www.youtube.com/watch?v=LGPZu1lfzT0 ) then look at what you need to say yes or no to. This will come from a clear mind that will activate your intuition and give you an answer that will feed you as opposed to one that just seems good or fun at the moment but the lasting effects will neither sustain nor support you.