A large percent of business failure happens in the first 13 months. Most people don't realize what it cost to open the door everyday. I would advise starting small at home, keep your day job just in case this doesn't work. I started my first business, a Union oil service station with $1000.00 , but that was 40 years ago. The profit margin was 5%. That means I got to keep a nickel out of every dollar I took in.