I am too. I downloaded an app (Jerboa) made an account, and then just started searching for some of the interest subreddits I used and subscribed to them. Found an aww, tech, movie and tv shows, reddit migration, gunpla, and others so I can customize my "front page".

I took the learn by doing approach. I didn't really look at any tutorials or how to guides, just started with the app messed around. Did some searches for hobbies and interest. Linked an account and then started subscribing. I think I got the jist, but still can't see the full scope and picture of how it works but not bad for day 1 I think. Good luck on your journey!!