your routine as possible and if you do have to cave (we did on occasion when he was very sick) get right back to it. it takes 3 times for something to become routine so break it before that happens. i hope that helps. i felt the hardest months for us were between 4-6 months. at about 8 months it started become so much easier and now at nearly 11 months he is so fun and honestly i am so sad at night when i put him to bed. happy to answer any questions though. i know sleep stuff can be so hard. i read a ton to figure out 