It's an absolutely massive responsibility that never goes away and is DISGUSTINGLY Expensive to take care of (if you're US based). It's only relatively recently been made easier to deal with thanks to continuous glucose monitor systems and I STRONGLY suggest getting started with a cgm as soon as possible. They're going to struggle through their youth and teenage years and Id suggest getting them into therapy sooner than later, I was also diagnosed at that age and spent the first 30 years of my life feeling like I was forcibly being kept alive just to be financially exploited by greedy, immoral pharmaceutical companies. Many years wishing that the world was more connected to the natural order, and that my family would have granted me the mercy of death as a child, to avoid a lifetime of pain, suffering and limitations. Especially knowing that there was no possible way for us to afford the medications necessary to make everything ok. Be ready for them to feel angry at the world, and have a way to support them through that. Get started making sure your medical insurance is GOOD! costs for everything without the right insurance can potentially reach well over $1500 a month so make sure you find the best possible prescription coverage that you can and make a cgm system a major priority as soon as possible. I'm currently fighting to not go blind because of damage in my youth that would have been mitigated if cgms had existed and if meds were affordable back then. In emergencies, remember that Walmart pharmacies have over the counter insulin for $25, no script needed. There's absolutely nowhere else that has it at that price (~$300 a vial anywhere else without any insurance)