Worries of a Gan Chiong Mummy

It's only about 10 more days before Alaric starts his preschool in December.
I am so worried about everything. The starting of preschool changes our whole lifestyle. I am worried about almost everything you can think of:-
1- his adaptation to school
2- eating meals in school as he is still on porridge for both lunch and dinner
3- napping in school
4- crying in school
5- building his immunity system in school
6- whether this school will be the one for him
I really do hope things will turn out well and he will enjoy school.
Sigh. Keeping my fingers crossed.