Failure is a risk.
I’ve heard that in Silicon Valley, you’re not going to score an investment unless you have had at least one meteoric failure. The thinks of the proverb is that unless you have had some failures in your experience, you haven’t truly learned enough lessons to be successful in the future. This was certainly true in my electronics class. I learned a lot more when my radio didn’t work. The best electronics people are the ones who can figure out why things don’t work.
The other implication is that investors want you to learn on someone else’s nickel.
Regardless, you’ll never know everything in time to get started. So go ahead and get started. You’ll figure it out.