Hi, welcome to silkysteps. If any advice, I'd say follow your mums lead, cool and collected is a good pace
To help ease your mind with the enrolement numbers was a feasibility check or study done that you can use to help focus activities - leaflet drops, invitations, are you able to enquire where parents hope to send their children?
Businesslink will help support everything as well as building links with the local schools, childminding networks and the other settings you've mentioned.
Please enjoy the site, very much look forward to hearing how things go for you xx
Best wishes with it
Ruth