Instead of spending hours playing with accounting software, dreaming up potential expense and income categories, and creating fancy reports with no data, spend that time generating revenue. As long as you record everything you do now, creating a more formal system later will be fairly easy. It will also be more fun, because then you'll have real data to enter.
Small businesses have a tougher time getting approved due to factors including lower sales volume and cash reserves; add to that bad personal credit or no collateral (such as real estate to secure a loan), and many small-business owners come up empty-handed. Getting funded takes longer than other options — typically two to six months — but banks are usually your lowest-APR option.