#5 What should you charge?
Whatever you were earning per hour in your fixed job, charge three times that (at least) to maintain the same lifestyle in the long run. If you are charging less you are doing yourself a disservice.
#6 Avoiding Financial Burdens
Get rid of all high level debts, do not go out on your own with huge credit card debt or car loans, try to clear these. These will just give you un-needed stresses and pressures.
#7 Confronting your fears aka being courageous
Starting a business is super hard, going out on your own is even harder. Be ready to get comfortable with confronting your fears.