Having someone you can ask questions to is huuuge. I have a friend who knows it pretty well and that was supremely helpful to get through some initial stumbling blocks and confusions.

I use Clion which is also super helpful in letting me inspect, autocomplete, and lint code before compiling.

The main rust-lang.org is quite good, but beyond that nothing in particular stands out. But lots of one-off blog posts on specific topics help get through certain blocks, eg how to write traits/impls.