HELP... waking every hour

Lara • 26 • married • melb, Australia • first pregnancy •
My nearly 10 month old hasn't slept threw the night yet and he used to wake every 2 hours maybe 3 hours if we were lucky... but now it's every hour... we've tried everything!!!! It used to be an assosication between nursing and sleeping that woke him but I've broken that habit and he still wakes up... even worse now! 10 months no sleep, exhausted would be an understatement! 
Please if anyone has had a method that works even just a 4 hour straight sleep would be amazing! We need help. We've even payed $1000 a night for a sleep consultant to come and stay the night... which was a waste of money! She did the "cry it out" method, I left my poor baby to cry the whole night and I wasn't aloud in the room! So never again! Help, help, help people 😔😔 I love my son more than anything in this world and it makes me sad that I can't have that energy during the day like I would love to have!! I could be so much better during the days then what I am because of lack of sleep!