Ask HN: how to become technical in 2-3 years?

Hey HN, I have a different spin on the old “how do I learn how to program” question: How do I learn how to program, launch, maintain, and update a web application? Measure this in years. My story: I had an amazing idea for a business. I spent 6 months researching it and laying out exactly how it will work. The site isn't very technically-complicated, but it's not a blog either. So I decided I could easily teach myself programming (with little prior experience) in ~6 months and then launch the serious, heavy-hitting product. If it were successful, I’d hire a technical guy to run the technical stuff while I manage everything else. Am I correct in thinking that this was a bit shortsighted? I’m slowly starting to realize that there is a lot of technical (and non-technical) knowledge to be had: programming the site, system admin, business administration, etc. etc. More importantly, that it may be too much for me to learn all at once, seeing that I’m a computer-savvy (but not math or program