The music/exercise does come together and we have to believe that practice will help! We (people) tend to expect that we will be proficient pretty close to immediately -- especially adults who are competent in their jobs and can make quality, on-the-spot decision! We forget that some things take a longer time to master and music is one of them! I spent close to two years working on one set of piano pieces, 17 minutes in total performance time. Music is like that. We poke at it, we dig into it, it fights back, we curse, then we are amazed at the beauty of a moment, then the cursing begins again. Ultimately we rejoice ... in the beauty of the creating, the excitement of the moment and the joy of our accomplishment! What a gift.
Have faith and keep practicing!