You don’t have to become an entirely different person to be really good at sales. If that was the case then you might as well just quit and let someone else have your job. That’s just not the case you need some fine tuning mild adjustments and maybe some education and training that you haven’t had before. But that doesn’t mean you have to be a totally different person. Who you are is just fine you have made the way you are and you can be a sales professional to.