18 months old won't sleep

Miranda

Sleep regression? Idk bc it's been super consistent now going on months of no sleep. He will wake up freaking out I have to go in and take him into another room and sleep with him. Then sometimes he will just be up for hours. Last night was from 1 to 430 . Then up for the day at 730. It's been very frustrating. He falls asleep alone he has always slept alone. Idk what is the deal I need sleep desperately.