As I get closer to a deadline, there is always a fear of not shipping on time or even not at all. Shipping is always fraught with risk and responsibility. When you launch a new product or design you expose yourself to criticism, but these are the negative consequences that come with launching any idea.
Its no wonder when launching you experience anxiety.
But, you don't have much choice. Would you rather not do anything or do something "less risky?"
Since we are going to do it anyway, why bother aiding our anxieties?
So, If you have the same issues, I just finished a book that may help. It definitely gave me a kick in the ass. Its called the "War of Art" by Steven Pressfield. I recommend it to anyone trying to get pass their own creative hurdles.