I'm not sure about your funding situation, but you could always try to get paid employment and switch to working on your business on the side.

Ultimately, the success is based on the strength of the execution and finding product market fit with a big enough market. If you're too burnt out, it sounds like you are hitting some internal limit.

If you have hope (and resources) push through. If you don't, step away, recover and reflect.

If you find yourself passionate about it later on, then you can go right back in!

Being able to construct a story of growth, entrepreneurship and risk is a great one to tell in your 20s and you shouldn't be ashamed.

I appreciate your words I will reflect