My sister-in-law started going that church recently. As far I know, this church is big and there are a lot of worship sections for different groups. She told me that a lot of artist (stars) go to that church.
The church in Moreton Terrace (opposite to Central Library) is Tung Fook Church. They have 3 sunday worship sections and one in Saturday night and one in Monday night as well. I hope you can join the worship and back to God again.
Should you need any help or want some more information, please feel free to ask me.