Our 10 month old son is still waking up every 1-2 hours at night screaming at the top of his lungs, for absolutely no reason at all. Not hungry, no wet nappy, sometimes hugging and talking/singing helps, sometimes it doesn't. Me and my wife are just 100% exhausted and I can't wait for this to end - but at 6 month mark everyone was telling us "oh this will only last another few weeks, don't worry" - it's 4 months later and he still does it. I'm losing hope slowly.
Unsure if it's night terrors. We went through it twice. Both times lasted 3-4 weeks.
Daughter would go to bed, fall asleep, all happy, full belly etc. At around 2am, wake up screaming at the top of her lungs. I would pick her up and hold her and pace back and forth for about 2 hours while she sobbed. If my wife tried to touch her the crying would go back up full blast.
After the 4th night on the first time I just threw her over my sholder and hummed to her until she fell asleep, then wife got her blanket and pillow and put it in our bed between us and i would slowly move to the bed, gently put her down trying not to wake her (she woke easy a few times doing this) and then that was usually it for the rest of the night.
1st time was at about 20 months, second time at about 28 months. Bar none the WORST experience we've had so far.
In terms of sleeping through the night, she took ~18 months before not waking for milk in the middle of the night. In the early days I had her crib next to my bed and if she began to stir I would instantly wake, make a bottle. (we did formula for the whole thing, kept a flask of warm water and pre-measured milk powder next to the bed). Change her nappy, feed her, and put her back to sleep. I would be awake for 10 minutes and back to sleep.
I consider myself very lucky in this regard because I've heard horror stories.
Edit: Oh, the other thing with the night terrors, one thing the internet told us to do was get a night light. And don't turn the room light on when they wake. Makes getting back to sleep much harder.
Hang in there mate -- I would suggest just making your peace with it, and not getting your hopes up in expectation of a fix coming in at a particular milestone/age/time. Hope is just bad for your mental health at this stage.
I went through the same thing with my now-13-month-old son. Literally every single month N someone would tell us, "Oh don't worry, this will go away once he turns N+1 months old." AND IT NEVER DID.
Until about a month or so back, that is. Just completely randomly -- I don't think we did anything different to the usual routine, he just started sleeping big 7-9 hours stretches as night with one brief screamy wakeup, and sometimes even 10-11 hours.
Up until then we'd attempted everything -- sleep training, white noise, blackout blinds, rocking, not rocking, singing, calming music, EVERYTHING -- and at some point just decided if he's going to sleep terribly and scream anyway, there wasn't much point beating ourselves up over it and just made our peace with it, and stuck to the same routine that seemed to get the best (VERY RELATIVELY SPEAKING) results.