A lot of businesses think they need to bring in equity investors as soon as possible. Every business is different, but building your customer base and revenue stream is going to help you get a better equity deal.
I would go so far as to say that most aspiring entrepreneurs ought to start their entrepreneurial journey while sitting inside a corporate umbrella. Especially for technical people, it allows for the enhancing of their technical skills, while also developing the bricks needed to build a venture.
If you want to keep near-complete control of your business and can make the decisions necessary to keep a business afloat when it's tight, then it may be best to simply make do with what you have.
Indeed, surviving as a new firm is far from guaranteed, no matter how good your product or service. By following some of these tips from our experience, hopefully your business will not only survive, but flourish.