Howdy partners, I'm part way through my programming education, with top-level CSS, HTML and Java under my belt, plus some more in-depth python. I want to really focus now on education which will be more relevant specifically to Bitcoin development, though I appreciate these days that many different languages are used for various different projects all within the Bitcoin sphere.

My question is this:

What would you focus on from here? Are there any really good courses? Or, just continue with python and start to build shit that I think is cool?