Help me please! I'm gonna lose it

So welive in a tiny apartment. It's hardly even a one bedroom and my SO and I finally got us a bigger 1 bedroom apartment that we are moving into this coming weekend.

I've tried packing stuff up but I don't know where to start. Stuff is everywhere and we're running out of room to place the already packed boxes..and I'm gonna pull my hair our because my boyfriend has such a laid back attitude about the whole thing saying that we hardly have anything to pack when we literally have EVERYTHING to pack.

Where do I begin packing? I just want to throw everything away and start over like I usually do when I move. I'm not used to having so much stuff. I used to be able to pack my car and move and now I have to pack 2 cars AND a trailer to move furniture!

Holy crap I'm gonna lose it. Help me please!