Second time mums... is there anything you'd do differently?

I am a third time mother now and I learned some mistakes from my 2nd pregnancy. 1. I will spend more time with my elder kids instead of solely focusing on newborn. Previously I focused too much on my new 2nd baby and end up my elder one jealous. I was too confident that she will not get jealous at all. It ended up she experienced a huge emotional and behavioral changes, e.g. skip naps, hit her brother. 2. With more kids in the house, I tend to become hot temper as I feel very stressful. This time round I have pasted some of the reminder in the house for me to remind myself not to scold my kids but to talk to them nicely without losing my temper. 3. I will try to involve my kids to help in the new baby. Previously I worry too much about baby will have injuries. Now that my kids are older, I should trust them can handle newborn well with close monitoring.