You've given yourself a job you don't like just because it's "boss" stuff. If it's your company you should at least be doing the things you enjoy, not things you don't just because it's what you're supposed to do.

As suggested - hire a biz person/salesy engineer. Obviously, not someone who is just a slick sales guy but one who will fit in with the culture and enjoys what drains you & understands you're still CEO.

If I were you, I'd feel the same way - kinda down (I was just putting together a proposal myself...ugh). But, you should be thrilled. You've lined yourself up so you have the resources (team) to create and the connections (customers/others in same industry) to get early feedback/customers on any product.

Solution: Vacation, find a problem to solve, don't do the stuff at your own company that you don't enjoy.