How can i progress?

Hi everyone, I'm looking for some advice on how to improve my programming skills. I'm studying AI engineering and currently only know Python. I feel like I'm doing well, but I need to progress further and delve deeper into the subject. I also have the time between exams and retakes to make the most of my time. I have three key questions: What's the best way to improve? I thought that doing long, comprehensive "projects" was the best approach, but