Noob question. How to build SaaS?

I am from capital markets and consulting background with 11 yrs of experience. I have been tinkering on SaaS idea and business plan for last few years for a niche product useful for CFOs. The problem is, I have zero knowledge of Tech. Can you suggest the steps to build SaaS business or some resources (articles, videos, course) that can be useful for beginner like me.