Information is quite possibly the most important water of success when facing a challenge or new initiative. One of the leading factors that lead a person to think "What have I gotten myself into" is lack of information. What information do you need? Is the information you already have accurate? Who has all of the information? How can you get that information?
When you have all the information and eliminate as much of the unknown as possible, you will be empowered. You will be able to move forward, trusting that any decisions you have to make can be made with a sound mind.