I'm not a beginner coder, but I haven't worked on projects in a team environment before, so I signed up on c0d3.com hoping to gain some experience.
Any pointers?
If you think it is helpful, you can breeze through the lessons and exercises so you know / understand how other students use the curriculum, then work with the more senior students as a team on c0d3.com and build features to make it better. Proudly put all your contributions (features, mentoring work, authoring work - if you contributed to the course material) on your resume.