19mo sleep issues

my 19 month old still wakes through the night CONSTANTLY i’m talking 6+ times every night even when i’m laying in bed with him he’ll wake up and i really don’t know how much more sleep deprivation i can take 😩 we’ve tried EVERYTHING we have a night routine we follow same time every night we’ve tried making it later and earlier , less daytime nap more daytime nap , books , bottles , pacifiers , sound machines , music , making room hotter and colder NOTHING will get this boy to sleep through the night honestly i’d be fine if he was still waking 3 times a night i just cannot do this no sleep thing anymore please if anyone has any advice i’d really appreciate it !