Supplemental material to help with FCC

So I am currently almost to the Basic Algorithm Scripting section in FCC and I am really starting to struggle with Javascript. I have used other resources along the way, but it really varied by lesson. Is there some other course/website I can follow along with FCC to help me learn the material? I know there are a lot of other resources out there, but I am not sure which to use. Code academy? Udacity? There are a lot out there I am just not sure where to start

I find “The Web Developer Bootcamp” on Udemy really helpfu, especially the Javascript parts: - right now the course is on sale for 15€.