I have seen many people quit high-paying jobs to start their own business ventures. Most people who do this have failed and gone bankrupt, and very few people have actually succeeded. Therefore, if you have a good job and want to give up the job to start a business, think carefully before quitting. If you really want to do it, make sure to do a couple of things like, have enough money to run your business for many months even when you have zero sales (it actually takes a long time to earn profit), and have enough funds to pay for personal expenses until you start generating income.