Go work at a car dealership for a year. If you don’t make enough money to get your business started/secure financing if needed/have a runway, you’re not cut out for this anyways. There’s no work around, “what ifs”, or “buts” here. If you have any questions like “how do I get a job at a car dealership though” or “well this doesn’t apply to me because _____” there is your answer right there.