:wave: Welcome to MIMF, hac264.
How long have you been playing the organ in church?
Best advice on learning to play the organ is to get yourself a tutor.
You may also want to get the Stainer method book on organ playing, too.
I learned, years and years ago, with a teacher and the Gleason Method of Organ playing book, a rather pricey book today, but back then (in 1960) it was quite reasonable.