I did quite a deep dive into Monads and their laws, and I thought it might be useful to go into some of the stuff I found. Maybe it'll help you get it too!
Monads turn out to be pretty simple. They might look like Functors a little -- there's good reason for that! -- but I think a better place to start is to understand Monoids.
(I don't think they covered Monoids. I can't think why, they're simple and a great introduction into Monads.)