From scripting to software

I am a DevOps engineer, far more on the ops/automation side of things. I’d like to get into the development side significantly more but aren’t really sure what to be learning. Currently I can script in python and bash, and I’ve cobbled together some ETL microservices for a data science project i’m working on but i’d like to get into real software architecture/development.

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Currently I am learning golang and some computer science fundamentals but what and in what order should I learn things if I wanted to do this? I’m studying for the google cloud professional cloud architect but that’s more on the infrastructure/tooling side of things rather than actual software