Moving out of parents house

Any advise? I'm moving out of my dads house and we'll be moving into a two bedroom apartment (my boyfriend, son, and I) I'm 16 and we've been together for almost four years and we've lived together since before our son was born. (Almost two years) we're financially stable and moving into an income based apartment and only have to pay that plus electricity. Any advise on moving or saving or pretty much any of this?