The runaway and homeless youth acts are primarly designed to provide help for kids who would otherwise be homeless. My guess is that if you have a safe roof over your head you would not be a priority item for anyone to address in a police context.
That said, if Dad wants you back --for good or bad reasons (as in you are his meal ticket for some public benefits) Dad may be able to insist upon your return
Aslo, if friends are in different school district the school districts could balk as to who is right district. That all too easy to end run in my state of PA but I'm not sure about MI.
If you have health issues your coverage might matter if you were not a dependent of person named on policy.
And in that context, if you needed parental permission for anything your hosts would be unable to assist.
And if your welcome mat with hosts wears out you might truly become homeless.
My view--it probably can work OK but its not without some possible bumps in road.
What are the problems at home--if they involve physical or sexual abuse visited upon you its possible that you could engineer being taken out of said home by CPS or equivalent and placed with willing host by order--AND you host would get some support as to your costs and perhaps some medical coverage as well. At least consider if the shoe fits to use the shoe.
That said I strongly urge you to get a decent education--including a college degree. Holding a degree does not assure success but lack of a degree, especially a real HS diploma , but also a college degree is a real barrier for a lot of folks. And a simple criminal conviction record can be deadly as to a lot of job options --so keep your coat tails clean!
Best of Luck. Make good things happen!