How much should I know to start a programming blog? : Blogging

Hello everyone

I got into my first year of college 5 months ago and I decided that I want to start a programming blog. I haven’t been that consistent with my coding for the first four months but for a month now I have been coding consistently. I read a few articles that it’s okay to write about what you are learning in your coding journey but I still feel like I haven’t learned anything that I can write about.

Has anyone also faced the same problem while starting a programming blog?

How much do I need to learn before I can actually write about that might help some readers?

Thanks