The most difficult part of any journey, especially one into the unknown is the first step. When risk is involved, it seems like we tend stand back, delay, or even come up with some reason why we shouldn't begin the journey.
Whether it is a new career, new home, or some other life altering choice, we worry about the "what ifs" thinking ,not about all of the good things and successes but, rather, all of the things that might go wrong which almost never happen.
If you believe that the end of the journey is important, take that first step boldly. The next one and all subsequent ones will become progressively easier until you see, close at hand, and then realize that goal. You will have arrived. Celebrate!