Stuck with the Jammming project


I am following the Full-stack engineer career path. I am currently halfway and working on the Jammming project in the React part of the course.

I am fine until step 74/99. However, from step 74 and on I just don’t understand what I am doing anymore, not even when reading the Spotify guides and watching the walkthrough video. I don’t get the how and why of the (sequence of the) steps taken. It feels like my understanding of working with third-party API’s is just falling short.

Is this normal? Or is it just that working with the Spotify API is particularly challenging? Does anyone have a tip for how I can boost my knowledge/experience on this topic? I am sorry for this nonspecific (maybe even stupid) question, but it makes me feel that my efforts so far didn’t pay off.