Then don’t become a “designer”.
Correct me if I am wrong, but it seems you would be well suited for a career in new product development. There are many other positions other than “designer” in the field. In hindsight, I would follow a different path into new product development if I had a do over. “Designers” tend to be a bunch of whiny b!tches (I do fit that role well;)).
My advice, and take it for what its worth, broaden your perspective and don’t adhere to any definition of “designer”. I wouldn’t hire a “designer” who would do so.