

I don’t see why you couldn’t have two separate devices - a basic smartphone that has only the apps you need for work (and no other personal information on it such as photos, contacts, etc.) and a “dumbphone” for personal use.
You can use the smartphone without a SIM card if you don’t need to receive calls or texts (some authenticators only require you to enter a code in their app instead of calling or texting you). There are also VOIP and virtual numbers you that you can use on that device if you need call and text features without giving away your personal number.
I like the rugged CAT dumb phones and believe Nokia still makes decent ones.
I would just be happy to have a re-start at life and a chance to make better choices. Enjoy simpler times, get a head start on hobbies and passions, see my favorite bands that are no longer around :)
Eventually I would invest in things which would earn me a safety net and extra income (hard to do that as a 10 year old), but not in companies that go against my values. I don’t need to get rich but I would like enough to be able to benefit my loved ones and community. Not the most ambitious, but practical.