Get your mum or MIL to stay over during the period you have to OT then those days you off, you care for your LO. Have either of them to follow your routine and stick to it and monitor them through CCTV to ensure all okay including safety of baby. Also try to get them handle your LO with you around but "pretend" not to assist them to ensure baby and grandmum bond together during the period you work. I did that for my first child because my LO was clingy to me. So every morning I put at my mum room, have her to play with my mum, let my mum bath her, and anytime LO miss me, mum can grab my clothes to let my LO feel comfy. It helps for me though. And also not to forget, ill tell her how the feeding gonna be. Once I'm home ill shower, dinner and let my mum rest till the next morning.