"Many successful businesses start out with funding -- from a bank, from investors or even from personal savings. My business was not like that. I was young, so I only had a few months of savings in my bank account and when I researched the loan process at my bank, it just seemed too daunting. To me, it made more sense to self-fund because I knew I would always have complete control of my company and wouldn't have to answer to anyone but my customers. However, that presented its own challenge. Like I mentioned, I didn't have a lot of money to spend. So I went the lean route. And the lessons I learned still guide our business today."
https://www.forbes.com/sites/yec/2018/05/24/top-5-business-lessons-for-starting-and-staying-lean/#7aff317e5c15/