I am very happy to hear that you believe God. I live in US. My church is bigger than that in HK. We have a nursery room, a little bit area and three small classroom for kintergarten children. My kids are 6 and 8. They go to another side for elementary group. We also have a group for teenagers. My church has a good program for the baby to the youth. Meand my husband, an adult, go to the chinese service on the other side of the building.
The kids go to the church start at two. So far, they don't really want to do the second part. (They have two parts: Sunday school first, and the JCC worship second.) They both like the sunday school, but don't really like the worship. The Sunday school teacher told me that they have already put Jesus in their heart. It is amazing that they learnt a lot in the Sunday school.
Hope to hear that you find a church. We will pray for you.