Please tell me how to stop breastfeeding! The baby is 10 months old an…

Please tell me how to stop breastfeeding! The baby is 10 months old and I don't have the strength anymore (he never sucked on a pacifier or breastfed, he spits up like garbage, refuses to take from a bottle as well). We feed him well, drink from a sippy cup and through a straw. But without breastfeeding we can't fall asleep at all, he wakes up often at night asking for a breast, and clearly not for food, sucks a couple of times and then falls back asleep. Tell me how to stop it so as not to harm the child?