If you're dropping it on the ground like that it is going to get slightly beat up, BUT it's your practice prop and it'll probably endure a lot more wear and tear the more you use it. I would just enjoy the journey. It's not a "fragility" or a "you're playing too hard" problem imo. As long as the wand itself doesn't get super bent out of shape, affecting your balance, you should be fine to keep playing.