She weined herself around 2 -2.5 months, it was a bottle around 10pm then around 5am. Then up around 8am for another, then our normal daily routine. As she got older, time between bottles at night got longer.

@klp16, How'd you get her to stop wanting a bottle through the night? I tried giving her a smaller amount and swap it out with her pacifier last night but it kept her up almost all night

I put my daughter in her own room. I never let her cry hysterically to sleep when she was under 8 months,I would go in her room until she calmed down and repeat. If she was crying/whining/fussy I would leave her alone. Eventually they do learn. However sleep regress is a real thing. When she was 9 months old, she would scream the moment she touched the crib, at that point I did let her scream, but never longer than 10 min, then I would go in and repeat above.

We put him in his own room. The first night we did that he slept for 12 hours straight.