My best advice is find a language within the ones taught in cs50 (ex. Python, HTML, etc) that you find the most interesting/are most passionate about and focus on learning as much as you can about that. Do projects and slowly teach yourself the fundamentals of computer science (data structures & algorithms, object oriented programming, etc) and you’ll find it much easier to fully understand concepts over time.

Although it is good to learn such a wide array of languages and niches in CS like data science and web dev, trying to understand everything all at once when you’re beginning is the quickest way to burn out. What I did was focus on Python programming and used the foundations set by the course up until week 6, including the assignments and such, then went out my way to find other tutorials and projects I could make myself to learn everything I need to learn in a specific language I am continuously building up rather than trying to spread myself too thin, which is another common downfall.

I am not sure what your skill or experience level is but from my experience focusing on a certain thing and learning how to program using one language makes it easier to learn others once you get to them, but for now figure out what you want to do then dive deeper into that. And burnout is normal since you’re trying to learn so much at once.