Hi I understand your worries as I am a deputy of a playgroup, as hard as it is all the children should be separated, male sure that as soon as the children enter the building they wash their hands, make sure you are washing your hands throughout the day, try and not touch your face, tie your hair up and out of the way, of provided wear a plastic apron, when you leave the setting if you can have hand sanitiser on you and use it on your hands, let anyone in your house know when you are arriving home so as they can stay out of the way, when you get home change out of your clothes and put them straight In a 30 degree wash, remember your shoes also if you have a dettol spray then spray them, then have a shower wash your hair also, and try and limit contact at home, try and keep 2 metres away if possible use another bathroom, living area, one person In the kitchen at a time, I understand the struggle of remembering all this and your worries too, but you will be ok hope this helps in any way xx