I think this is very easy verify: just climb down the abstraction ladder and try to solve some particular problem without those abstractions. If you then find yourself yearning for monads, macros or whatever else, then no - you haven't.

One particular thing that stuck with me during the past few months was the continuation monad/coroutines abstraction PureScript's Thermite library is built on. I happened to work on a project with another colleague, we were both writing some UI stuff and while he was fighting with callback hell I was happily writing sequentially looking code in the Aff monad.

It's not a particularly heavy abstraction, but something that can make your life so much easier. Most abstractions I use tend to fall into that uhm... category :)