For this blog post, I will be making a tutorial on how to change author/display/admin name in blogger. In this case, it’s the name you want to use or change to which you want people to know you by, you can use your real name, nickname or short version of your choice.
I think it would be better if you use a legitimate name of yours can be either in short or long-form so, it can be used for building a personal brand
FIRST, Go and look at the left side of your Blogger blog. search for SETTINGS and click it
SECOND, After that scroll down to the bottom of the page and under general click on the user profile text
THIRD, In edit user profile page, look for Identity section
Change the display name to your preferred name
Scroll down to the bottom of the page and click on save profile button