The best salesman are the ones who don't know how to say no. I think the self defeatist mentality of "I'm not a salesman" is the core problem. You're a salesman if you call yourself one. The main reason being: You're the first person who said yes. Your next job is to do what every other sales person has to do: stomach a no answer, learn from your mistakes, and iterate on your idea within reason of making sales. Validation is apart of the sales process as well.

Need someone to physically pitch your product to investors? I can't do that.