I think not being sure about what you want to do can be very stressful. I'm in my 30s now, but when I was in my 20s, all I knew was that I wanted to buy a house. Looking back, I am not even sure why that was so important to me, why renting seemed like a bad option.

I did the undergrad degree path, even though I was unsure, because it seemed to keep my options for the future more open, if that makes sense. You may be able to find scholarships-- or even just ask to audit a class for free, to see if you like it.

You may also want to contact SCORE and SBDC to see what kind of classes they have for would-be small business owners. Knowledge is power-- even if you aren't sure whether or not you want a business, you'll have more information about what skills and tools you would need.

I don't think you are a failure at all -- you are struggling with big questions and decisions.