Moving. Moving Moving....? help?

My dad cant afford the rent at our triplex anymore, we all loved it there so big and roomy for a 7 family (now 5 family). We are having to move back to my dads moms place. Its a SMALL, 3 bedroom,1 bath, and a shower downstairs in the open only a curtain to hide behind. My grandma and uncle already live there. She takes one room, my uncle the other. There is one room which is left for me (the room has NO privacy at all). There is a basement where my 2 brothers and possibly boyfriend will sleep. There is not much room only 2 beds will fit. My dad will sleep upstairs on the couch or chair and my boyfriend might sleep up there too. I remind you this house is very small, along with a pit-bull dog running around. That would mean there would be 7 people and a dog all in a small house. It gets very crowded all the time. Our lights and stuff is getting shut off today and we are trying to be out by the 24th. My problem is how could I make this work? We all don't want to live there but its our only option and my dad keeps getting his check garnished. So we have no money and running out of options.... Can anyone see if they can give me advice on how to handle and do any of this? Im not sure what I am asking I just need help on this moving. Oh and for your info I HATE MOVING! We always leave our memories behind in the house :( Please help?