Hi Bob, G'day mate!
Good on you for taking up keyboarding. Regardless of age, it is indeed a challenge learning from scratch but it has massive rewards.
It enlightens the spirits and aids repelling dementia just for starters.
So I am an AUSSIE too. (Melbourne).
My story is similar to yours bieng self taught. I began my journey from scratch knowing nothing about making music just a few years ago. I am 67 a little yonger than you.