sometimes family and friends aren't always there for us during this. They tent to question why you are losing weight and keep bad food around. With you living with another family you have to keep in mind that they may not being eating the same things as you are and that can be hard.
Meeting new people may just be a matter of getting out and walking. Maybe introduce yourself to someone... and maybe end up with a walking partner.
2 tots?? I know you said you just had a 6 month old. How old is the other? Is the other walking yet, if not once he/she starts and you end having to chase the little one around, you'll be getting exercise without even thinking of it.