7 month old STILL not sleeping

kk

so i have a 7 month old little boy who is breastfed. he has never been a good sleeper. his whole life he’s been up 4-5 times a night minimum. i’ve been working on some sleep training, going to sleep on his own and self soothing. he does just fine at nap time(even though i’m still trying to get him to stop cat napping.) and he goes to bed at 8 and does just fine. he’ll sleep without a peep until 11 when i usually come to bed. within fifteen minutes of me me coming to bed he’s screaming wants to be held, he will not go back to sleep on his own, wants to constantly nurse (use me as a pacifier really) and i’m just exhausted. i feel like i haven’t slept in months. i was in bed sobbing my eyes out last night and my husband thought i was dying lol. it seems like he’s fine until i come to bed.

my daughter slept in my room in a bassinet till she was a year old(she was always and excellent sleeper) and i planned to do the same with this baby. but i’m wondering if it’s time to move him to his own room? he will be sharing a room with his older brother and i really don’t want the baby waking him up all hours of the night but i’m at a total loss. i’m honestly miserable from sleep deprivation.

have any other mamas experienced this? did things get better once you moved them? any advice? i feel like i’m in the verge of a breakdown tbh. 😰😰 (also i know there is another sleep regression at this age, but he has always had awful sleeping habits so i don’t really think that’s a big contributor at this point)