As someone who sees a lot of my peers overworking themselves (or being forced to by their parents), I totally understand where you’re coming from. Even with my EC’s, I still try to have a good balance of free time (it’s one of the reasons I chose not to go into Honors math; I knew it wasn’t worth the stress, especially when I plan on going into the humanities in the future). So I appreciate your concern and advice, but I’m not too worried.