In a perfect world, we have teachers and mentors that help us establish what we believe in and what we stand for while we're still in our teens and twenties--before we get caught up in the fast-paced world of birthing our own businesses and stomping out fires. But that's not always the way it works.
Soul searching and being accountable to yourself is far more valuable than any kind of business accounting. So first you need the inner strength that comes from believing in yourself, and from knowing that no matter what happens, you'll still have YOU. You know who you are...and you like yourself.