5 month old Sleep Regression HELP

My baby turned 5 months and his sleep is out of whack and I'm desperate. I'm so tired everyday but it's hard to train while working.... last night baby went to bed around 8:30-9 (which is usual for him) but then he will wake up at 1:30-2:00 for a bottle then goes back to sleep. After that its,when it's off and on...he would wake up 3:30, 4:00, 4:15. Then I just bring him to our bed to sleep with out (don't come at me im trying to sleep) then he would wake up at 6am and by that time I need to wake up....

When he wakes up he's screaming and I've tried the "cry out method" sleep training for like 5 min, but he just won't stop crying until I either give him his paci, feed him a little, or carry him until he falls asleep....

Any tips for me...PLEASE