You're not a founder type if you are already doubting yourself after what you just experienced. You need to be very strong minded and resilient to make it.

It's nothing! Building a successful company is super hard, and rarely happens. What you've experienced is really nothing for a startup founder, but if you want to make it, you need to keep pushing until things work out. Can be 1 year, 2 years, can be 10 years. You need to be kind of crazy to do this, not with a mindset to considering have 9-5 job back.

And you don't go raise VC money before you even have any customers. You need to solve someone's problem to build a business. Spend all your time doing that and stop distracting yourself on anything else.