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.
I once heard it said that fear is false evidence appearing real. It goes without saying that fear is only in our mind it's not something that has substance. It can be overcome by looking at your reality. Think about it you trained and practiced for this day you made all the effort put all of your energy into one thing. You have become an excellent sales professional what is there to be afraid of.
What are your dreams worth what price are you willing to pay for your personal financial freedom the freedom to do the things that you want to with the people you want to be with in the way you've always wanted to do them?