I wrote for over 35 years and never a single person read my work. I was simply meeting a need inside me. Then, one day, I realized that something that I wrote was damn good, really good. Not ready to be published--but I had reached a point where I knew that I couldn't get better unless I started to put my work out there. It was scary. It was terrifying. I suspect it is very similar to what you are feeling now.
Please don't let that stop you from pursuing what is probably a passion. It will bring you great joy. Simply write. I am willing to exchange pages, if you wish. PM me.
There is more to the being strong warnings posted by others. As you put your work out there, you need to be strong enough to properly judge the feedback that you receive. You have to take something you don't like, and then decide if it was justified, might be justified, or simply is way off base (and it can be). If you try to WRITE to someone else's muse--you will have done yourself no favors.
I wish you well. I will try to find a piece that I wrote on ego and post the thread for you. It was comforting to know that so many others felt the same fears that I did when I started this strange ride.