My DS is 14 mo now and I found that a real routine only started establishing itself by 5/6 mo but he was a reflux baby who preferred to snack feed! We always had a bath/bottle/bed routine from 7 weeks. Have you started weaning at all? I found that really shaped our day so from memory we did wake 7am and bottle, nap 8.30am, 11am lunch, 11.30am nap, 2pm bottle, 4pm nap, 5pm tea, 6.30pm bath, bottle then story and bed.
I dropped his 7am bottle for breakfast when he was eating a fair amount so probably 6.5 months.