Just code. Python, C, doesn't matter. Learn both at once, learn 5 languages at once, or focus on one exclusively. Write a GUI app, or a web front end, or an assembler implementation of a parser tree, or a text adventure game. Whatever keeps you interested. People will tell you you have to do it this way or that, and they're all wrong, because they're not you. It doesn't matter at all how you do it, or what you choose to write, so long as (1) you can keep up your interest and (2) you're coding.