My first game wasn't nearly as good! Excellent work, this is a great concept for a game, and I love that you can play using a touch device.
I felt the collisions for the stones were a bit hazardous, I could go some places where I think I couldn't and vice versa. But besides that, your game has a great level of polish for a first game, and is lots of fun.
Congrats, I hope you had fun learning and using GDevelop! 😁