If anyone ever forced you to take music lessons as a child when you had no motivation of your own, the words “go practice” can evoke terrible memories of mind-numbing boredom. Even skilled musicians who have practiced years have days when practicing is the last thing they feel like doing.
You're lucky to have the one thing necessary to make sure practicing won't be a bore — the desire to play the harmonica! When you're practicing something you really want to get good at, time flies by. You might wonder how musicians could practice for hours at a time. The reason is it can seem like minutes to them because they're so absorbed in what they're doing.
The hardest thing about practicing is sitting down and beginning. Before you physically sit down in your practice chair, anything and everything will distract you, but once you start practicing, all the fun of playing the harmonica will keep you entertained.
Furthermore, as you progress, your own improvement will become a huge motivator for you to keep practicing. Ultimately the goal is to push your skills to the limit of what is possible on your instrument — and then beyond!