Sleep help

I’m at my wits end with my 7 month old and his sleeping. It’s been terrible lately. For the longest time he was an excellent sleeper and then all of a sudden it’s awful. We have a nightly routine that we have been doing since he was 4 months old. I will bathe him, apply lotion, read to him, rock him and give him a bottle. I lay him down groggy and normally he would go to sleep without a fuss. Lately he will scream as soon as he is laid down. If I’m lucky he will fall asleep after a few minutes but is waking up at hour intervals even though he isn’t due for a bottle and doesn’t need a diaper change. I’ve tried Ferber sleep training and cry it out but nothing seems to be working. I’ve tried giving him his binky which he proceeds to spit out or throw. I’m exhausted for work every day and I don’t know what else to do.