Girls, help. The baby has been sucking on my breast all night long. I …

Girls, help. The baby has been sucking on my breast all night long. I pick him up around 2-3 in the morning and he keeps sucking on it until morning. He doesn't understand that he's full and continues to eat even when I try to take the breast away, even if he falls asleep, he starts getting nervous and looking for it. Nipples won't take them, we tried different ones, he doesn't want to (what should I do?)