For your sanity's sake, maybe you can try a pacifier :-) I don't think there is anything wrong with that. And of course, you can try sleep training him. Let him cry for a couple of minutes before you soothe him. Then keep the duration before you soothe him longer and longer. Like from 10 minutes to 20 minutes to 30 minutes. I know it's hard but eventually they will be able to self soothe themselves. Hope this helps.
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