I understand how you may feel reluctant to allow an external advisor to delve into the detail of your business. I have had other clients who felt the same way. But all of my other clients found the investment they made was repaid many times over both in their business and their own work life balance. To help you we have produced a free spreadsheet which will allow you to reflect on what you would like to achieve with your business and where you are at present. If you use the spreadsheet it will help you to identify if it would be beneficial to get an external advisor or if you are proceeding in the direction you want. Once you have completed the spreadsheet we will review the results with you if you want at no cost to you.
When presenting your business plan to an angel investor you must understand that they will be very interested in your spreadsheets and proformas, but you must also realize that it is typically an entrepreneurial optimistic approach, which causes problems with proformas. Therefore, you should have dueling spreadsheets; that is to say the spreadsheets, which take your best guess and double the time, double the expenses to compete with your optimistic approach. You should be able to present both of these to your Angel Investor; who chances are is a retired business person with a little bit of financial savvy.