leaping

I have been wanting to start my own business but I am filled with doubts and excuses-mostly for time and money. I am also scared to fail-typical of me, so I am stalling. I have a dream for myself in which I am fearless, but I also know that I should be realistic and factor this fear into my approach. I need a lot of security and do not take easily to risks. This is a big risk with what I hope is going to be big rewards but I just can't seem to focus. Part of me thinks 'fuck it' and just start-take that leap of the cliff. Part of me thinks I should spend the next year really do research-testing recipes, getting to know my market, raising funds, getting a website and some marketing, etc. I do not want to start something that is the beginning of my ultimate dream only to have it fail-at this point in my life I need a success very badly. I am worried about what another failure will do so my guts is telling me to be prepared-or is it my fear just stalling? I do not trust my instincts, or rather I do not recognize them.
The past few months I have been focusing on my vision for the future-my ideal career, my vocation, my relationships and my health. I can see it (somewhat) clearly exactly what I want to be doing, how I want to be living and I have been focusing on getting comfortable with the notion of being able to achieve it-your basic power of positive thinking stuff. But the time for action is drawing closer. I know it because I'm scared.