It’s not a hook but an interesting part of the story of who you are. But don’t use it to "explain " your grades. It seems to fit with your other accomplishments, so use it in that context.
But I think schools will want to see that you value your education (at least in the areas that are part of your passion), so you should give thought to what you want to study in college and why and explain it. Your achievements and your grades are likely to be interpreted at first glance in z way that makes you look like an underachiever. You probably are going to want to tackle that one head-on, showing improvement (even in your senior year - finish strong!) and recognition of not having made your best effort.
It sounds like, before picking colleges, you need to let us know what you would like to study and what kind of environment you prefer. It sounds like you may not be a good candidate for schools with lots of distribution requirements. You may do better where admissions are done holistically. Do you want a big party scene? Preferably in one part of the country.? There are definitely schools that would be happy to have you.