I think clearly and effectively presenting yourself and your idea is something you can get better at. Perhaps right now, being a founder is not the right thing

I think clearly and effectively presenting yourself and your idea is something you can get better at. Perhaps right now, being a founder is not the right thing for you, just like perhaps later, it will be. I think it can be helpful to be careful with how you internalize things. Thinking "I'm just not made for being a founder" could become self-fulfilling, whereas rephrasing it as "I don't have an interest in being a founder" or "Being a founder isn't right for me right now" might be more accurate.