Hi Leasha i feel your pain
Not going to tell you its normal cos i dont feel like it should be normal at all.
At 6 months MJ's sleep went out the window and i was up at night sometimes every 45 mins, i too tried everything...
Our sleep school is only a day stay and when i had the option of going settling to sleep wasnt a problem and thats what they worked on mainly, but it is now and i wish i had gone.

If you can get in i would say GO! i wish i had, we are starting to come out the other side of it now, she is only waking once at night and going back to sleep easily again now, but sometimes we have a bad night and i feel hopeless again.

I am so tired but have never been able to sleep during the day and still can't despite how tired I am, I have too many things running through my head when I try, all i can think is of all the things I should be doing... studying, cleaning/tidying, things Shel has asked me to do for her...

It's really impacting our relationship as well, apart from me being so bloody tired that I am dead to the world by 8pm, even when I am awake all i do is snap at her, partly because I'm so tired, and partly because I'm angry that she gets to go to sleep and stay in bed all night whereas I am up and down getting Jazz up, trying to settle her without feeding her, then having to feed her. When I do end up having to feed her I just get so irritated with having her 'attached' to me. It's not the feeding but actually having to feed that is getting to me.

I hear you on not being able to sleep during the day - i never have had a day slep, even just after was born (oh maybe day 2 or something but never at home)

Our relationship has gone downhill two, its so frustrating when you are the only one that can/will settle your child (DH is rarely home before she goes to bed) last week i cracked and said some very very nasty things and DH came home early last night to put her to bed - problem is, she is use to me putting her to bed that she gets all worked up so i had to do it anyway.

I told DH that he has to get up for one full night with her on the weekends (no BF overnight anymore - that stopped about a month ago, mainly cos i stopped offering and she didnt look for it) and he has reluctantly agreed.
Yes he is very tired from work, but i told him that MJ is his child too and if he doesnt play a part in her upbringing, there is no point him being around.... didnt go down well at all, but there you go it took 5 days for it to sink in and him to come home eraly one night... can you express to make this an option for both you and Shell so she can do one night a week?

I have no miricle answer (its been going on 5 mths here two) but i cant say that i wish i had gone to a Sleep school when i had the chance as it has got worse here... and she probably has got use to the bad sleeping patterns

Trillian told me on one of my threads about a lack of sleep, that high GI foods can make it worse at night, i cut out food at night and that didnt work, but i avoid things like potato or high GI fruit before bed and feed her solids 1.5-2 hrs before bed... that worked for us, MJ is a guts, she eats loads and when she got her meals amounts right it was a bit better.

Sorry i dont think i have been all that helpful, but wanted to let you know that you are not alone, on many of the things that you have mentioned