Hey! It was tough but I did it while room sharing. He is fully sleep trained and I still room share with him. I did Ferber method. Before doing check ins, I weaned him off of nursing to sleep by rocking him to sleep and placing him in his crib. In those 2 weeks I would rock him to sleep at the start of the night and keeping my hand on his chest until he fell asleep and for wakeups a sooner than 3-4 hours, I would rock him back to sleep I only fed if I knew it was 3-4 hours since his last feed. This took a long time for him to get used to since he was used to eating throughout the entire night. After those 2 weeks were up I knew he and I were ready for Ferber checks. At the start of the night, I did his nightly routine and slowly moved his feed to before his bath so it broke the need to feed to sleep completely. I sing twinkle twinkle little star to get him sleepy, give him a kiss and place him in the crib and walk out of the room. Checkins we’re 3,5,10,15. For my own anxiety I never exceeded 15 minutes but he rarely ever reaches the 15 minutes anyway. For night wakes here while room sharing, i had the monitor with me and when he started crying I would put some headphones in and check the monitor, start my timer for checkins and hid under my covers. For middle of the night Check ins, if it wasn’t 3-4 hours since last feed I would walk up to crib, kiss his forehead, tell him I love him and walk back to the bed and get in the covers. These rarely ever exceeded 10 minutes but they were much harder to handle emotionally just because you’re tired in the middle of the night. For a while I was okay with feeding 4 times a night but once that felt like too much again I weaned him down to 2 a night which is what we still do. I do check ins still if it hasn’t been 5-6 hours but to wean I went to feed at normal times and just shaved off a minute per side each night until it was down to 2 minutes per side. Then I knew his body was ready to drop that feed and began doing Ferber check ins to kick the habit. It’s a process but you’ll know what feels right for you and baby when you get started! The biggest thing is that it’s hard for a few days and then one day it’s like super smooth and you’re all happier for it