No! You just want to take the big picture into consideration.
If you are passionate about playing the piano and want to keep taking lessons to get better, then do it. Consider if what you are putting your money toward brings you some happiness. Not brief gratification, but something lasting that your really enjoy.
Maybe you collect trinkets and this is also tied to your social life, keep doing it. You’ll be allocating funds from other areas you’ve saved to apply here and this should also be part of your budget so that the spending doesn’t get out of control.
Something I’ve had to do a few times is scale back on my hobbies and what I’ve bought for them. I meantioned before that I used to have four guitars and a lot of photography equipment, but realized I could sell most of that stuff since I didn’t really need it. My basic needs in the hobbies were still satisfied with the basic gear I held on to.
Just keep the end goal in mind and ask yourself if this spending will get in the way of what you want your future to look like. Ask yourself what is more important to you?