any entrepreneur who is worth his salt has a list of past situations he/she wishes she could redo. As hard as you try you are not going to get everything right the first (or even second!) time around. The key take away here is to be focused but not spend too much time second guessing your self. If you go down this path you will get nothing done and you will make your self crazy. The second is to pick a strategy and commit to it. Once you are already going down a path you have to own it. Executing strategy is a 'wishy-washy" fashion will surely yield failure. Other than that you need to be the kind of person who does not blame others for failure. Once you begin your business endeavor you have to be comfortable knowing that everything that goes wrong is your fault. The buck stops with you and is your responsibility to repair the product/service and the customer relationship. So, as long as you are willing to own those processes you will be just fine. You can get advice on the accounting and legal to smooth your path with the logistics, but you have to have the heart for this kind of journey and nobody can answer that except for you.