Should I narrow my niche even more?

I completed the niche worksheet. I want to design Squarespace websites for entrepreneurs. My google questions are: “how to build a website” and “how to make a website on Squarespace.” The problem that I would be solving is that I would build the website for you so that you do not have to figure it out yourself. My solution is compelling because I can build the website within 72 hours.

Should I narrow my niche even further? Like maybe specify which types of entrepreneurs? I thought by specifying the platform (Squarespace) then maybe it was narrow enough.