Why dont you just move to a nearby bigger city, I mean I admire your adventurousness but this is alot. From money point of view nobody is going to rent you a place if you have no income, so you need to get jobs first and then see what you could rent. Maybe you'd have to commute from fairly far away and brooklyn is just to expensive for you right now. I wish you the best but advise you to start by moving to a bigger city but something not so far away, get a job there, get some work and some more life experience, and then maybe move down the road if yoh still even want to.
As to living together, this might work out great or maybe you will find that being friends is fine but yiu arent compatible roomares. This is somethingnyou just have to try and see if it works out, but being friends for manynyears makes it more likely you will be ok as roommates.