If you quit at the first point it gets hard, maybe founding a company is not for you.
My advice, stick with it, but understand there are probably 100s of these already. You need to think about what makes your offering unique, especially with ChatGPT + <anything>. It's trivial to wrap an LLM around a small API or block of text.
Have you done any prompt engineering for your product? That will make a world of difference in output if you do it well.
Here's my example:
1. We are trying to address the code gen issues in LLM by combining it with our deterministic code gen tech
2. We spent time to reshape the problem and craft a prompt that works well for this integration
https://twitter.com/verdverm/status/1652504163635347456