Have you been thinking about wanting to write? Did someone mention to you that it might be good for your career? Or you want to write to earn some money? Maybe you just want to document your notes and share them with others?
I can’t read your mind and know your motives to want to start writing, that’s for sure. But what I can do is this: go through the fears that are currently stopping you starting to write. How do I know what these fears are? Because I have the same writing fears and I wrestle with them every day and every week.