Hang in there mama. It's not the end of the world. My Dd is still nursing at just shy of 2 although we did nightwean at 16 months. From 6 months to the night we nightweaned, she was up anywhere from every 1.5 hours to ever 3 hours. It was so much worse than the newborn phase.
I decided at 11 months that nightweaning was the only thing that was going to save my sanity, but I knew that I wouldn't do it before 12 months. Then life got in the way for the next 3 months.
We did a modified version of Dr. Jay Gordon's routine.
First I decided on the time that nursing would be off limits. For us, that's 11 pm to 7 am. that means that if she wakes up at 10:59 and wants milk, she gets it. I'm flexible in the AM. DD is a pretty early riser so she can have milk as early as 6 am, but I prefer she sleeps in until 7.
For days 1-3, I shortened the time she was being held and nursing and repeated the mantra, "its the middle of the night, it's time for sleeping." For days 4-6 I picked her up out of her crib but did not nurse her, adding "milkies went night-night" to the mantra. For days 7-9 I would talk to her in her crib, but did not pick her up. Back rubbing okay. Starting with Day 10 I didn't touch her.
Due to constraints in the house we are in, her crib is in our bedroom. It was important to me that she wasn't crying and ruining everyone's night. Everything went pretty smoothly.
The most important thing is to be consistent. If she fusses for 30 minutes and you cave - then she learns that if I fuss for X mom will give in. And the next time she'll fuss for X+Y minutes to get you to cave again.
Good Luck.
S.