Tolbee--congratulations! Those first two months were very tiring for sure, but be assured, it DOES GET BETTER!

Are you bfing? If so, that does put more pressure on you. If you're bottle feeding, then it's a bit easier to share shifts.
We have lots of family in town, so we had "someone" (my mom, his mom, step-mom, sisters, etc.) stay with us every night for the first 2-3 weeks. My DH runs his own business, so he really couldn't take time off work...he needed some sleep in order to be half-way productive. Those first weeks, I was up every feed (since I was bfing). I would just nap when I could. (I have to admit, I"m not a good napper, and I barely slept towards the end of my pregnancy, so I was very well-trained for no sleep!

) Our helper and my DH would take turns helping me on those night feeds. By about 6 weeks, we were only waking once at night, so then it wasn't so bad for DH to get up with me. (He had to bottle feed/supplement the baby I just finished bfing). By 11 weeks, they were sleeping through the night WHICH SAVED OUR LIVES! I swear, once they sleep through, it does change things. We were also weaning them at that point too, and going to bottles made our lives more enjoyable. But that was just what we had to do. I know many people bf twins just fine.
Your babes are still so young, and it's going to be hairy for a while. Have you read the book "BABYWISE"? It was very helpful to me, because it helped me get the babies on a schedule. I know it's not for everyone, but it might be worth looking at for you?
I remember that hormone shift. I cried nearly every day for the first couple of weeks. Not because I was unhappy, but because I was tired, my body was doing crazy things, and it was really overwhelming. But, I promise, it DOES get better! You are very lucky to have your mom with you. But, I do feel for you--I can't imagine having a toddler to care for too...he's got to be feeling overwhelmed. Hang in there. We're here for you. Maybe the girls who've delivered more recently might have some timely advice for you?
Oh, I just remembered....I made it a point to get myself out of the house at least for 15 minutes every day. Sometimes I walked the dog, other times I ran to the store, or I just sat on our front porch. It was my little way of getting "me" back. And that's very important. You have to take care of yourself if you're going to take care of your babies.
Good luck!