How to become a PixInsight Old Hand... keep asking lots of completely stupid questions
let everyone know that you have absolutely no idea what you're doing
Hang around long enough to be disowned by anyone with any credibility
Keep company with those who fiddle around trying to process data better relegated to the garbage bin. Convince yourself that you are really on track, and, that if you stick at it long enough you'll get there. One day, someone will come along with the BatchPreprocessing script and you will know, without a doubt, that you have made it
Hey! that's how I got there - it works.