Entreprenuers wanted

I am sitting at my desk wondering what the heck I am doing. Here I am with all the training and guidance to "make it" and there are others that started when I did on this same path that are making it...so why haven't I? I know I can't think in this manner, but the money from my inheritance is running out quickly. If I need to go back to the workforce this will just take longer. Is this what I really want? I know I really want the freedom, so why am I holding myself back?