How Can I Level Up from a Junior to Mid-Senior Developer?

Hey everyone! I'm reaching out to fellow web developers, especially seniors, for some guidance. I'm primarily a Python developer using Django and Flask, and I've done some interviews with smaller companies. Unfortunately, the questions they asked focused mainly on general knowledge rather than practical skills, and I was given a take-home assessment. I'm looking to level up my skills—what should I be focusing on to confidently move into a mid- to senior-level role? Also, how important are tools like Docker and CI/CD pipelines? A clear path or tips would be super helpful. Thanks a lot!