Getting him to sleep on his own

Hello moms out there. I had my first baby 7 months ago he's getting so big it's kinda scary. But I'm looking for some help on how to get my son to sleep in his crib(before you judge me hear me out) my son was born in December and about two weeks after our heater shit the bed we had no heat in my house for almost two months(waiting for my landlord to fix it) so we put him in bed with us and let's just say he's still here even as I'm typing this he's laying next to me my husband don't mind him in bed with us but I'm ready for him to be in his own. I've bought the best baby monitor there is and I'm trying to get him to sleep in his bed my other problem is he still don't sleep through the night he wakes up about three times just for my to put my breast in his mouth and he will suckel till he falls asleep he refuses to take a pacifier and I'm at a lost on how to hand this any tips would be a great help no negative comments please and thank you