(Sorry, can not type Chinese with work computer)
Had plenty of luggage, also had my hu*****and accompany us to the airtport and have the luggaged dropped off.
He left after that, and I pushed my baby girl in the stroller, looking around. No extra huge luaages, just a handbag.
I did not buy a seat for my girl. When booking the plane ticket, I mentioned that I've got a baby girl, her ticket is about 10% of normal price. When booking the seats online, make sure you can book a front row seat, where there is free baby carrier available.
Going home alone is not that difficult,you'll be all right.