Worst 3 days ever

So I’ve been trying to get my son to sleep in his crib using the Ferber method. It has been horrible. Let me tell you if you room share it doesn’t work. It has taken 2+ hours for my son to fall asleep then he wakes up in the middle of the night and it’s another 2+hours to sleep. When we bedshared he slept the whole night. I’ve kept our bedtime routine the same bath or wipe down, feed, lights out 1 episode of Mickey while we cuddle and then classical music the rest of the night. But he literally just cries in the crib I’ve gotten no more than an hour of sleep since we started Sunday night. I’ve been going to work half dead and not eating. This is way worse than his colic as a newborn at least then I was staying home but now I have to be up 6AM sleep or no sleep. Not to add the constant complaints from my dad about baby crying at night. Literally the worst week ever

Edit: I would like to add that my baby doesn’t really self soothe as he bedshares with me, when he stays at my moms house or my SO house overnight he bed shares with them also. The problem is the bedsharing.

Update: so it’s night 4 Ferber and extinction methods have not worked. I’ve been persistent on keeping him in the crib. I tried letting him fall asleep first where as before I was waiting until he was drowsy though it honestly made no difference. No crying (so far) tonight as long as I sat directly next to the crib. He is now asleep and groaning a bit. Hopefully he will have a long stretch of sleep. Thanks for all the support.