Ah, instructor burnout.

Take a break for a bit, and see if you feel better about it next flying season. Sometimes a bit away from this kind of thing is necessary. And recovering from burnout takes real time, not just a weekend or two.

If there are two local clubs near you, be an instructor at one, but just a regular joe pilot at the other.

I (almost) always bring one of my own planes to the field on beginners night, just in case no one shows up, then the evening isn't a waste, I get to fly!

Sometimes saying "no", or at least making a point that on random nights that aren't "beginners time" that you want some time to fly your own planes in between taking up students might help.

Personally, if someone does something stupid on their own and breaks their gear, I don't let it bother me. I figure they just had a learning experience. If they don't show up, it's their loss of stick time. Not sticking with it is natures way of saying that some folks just don't love aircraft the way many of us do. And that's ok. I'm not "super instrutor", I'm not responsible for guys staying with the hobby or breaking stuff when I'm not around, and I can't afford to loose sleep over stuff I can't control. Would I like to "make it better"? Yep, I would. But I can't worry about it.

Kids are kids, some will stick with it, most wont. I'm beginning to think a large number will drop it, but come back to the hobby later in life, like 20+years later. So plant the seeds now, and don't worry if it takes many seasons for the crop to show up.

Venting is good, and I hope you feel better