How do you paint over painted panel? Or give new look.

Do you know if it was painted with oil base paint or water base? Is it gloss?

Sand, prime and repaint.

You start with cleaning it, then a good coat of primer. Then go to town with your new stuff!

https://www.laurengreutman.com/paint-over-wood-paneling/

Can't wait to see what you do!

i bought a place that had paneled walls painted a flat color. I got a semi gloss and painted straight over it. No problems. Good luck.

Whatever paint you use, I learned to use a brush first to cut in AND to paint all the grooves. Then go over the whole thing with a roller. Trying to roll into the grooves was a mess. Rolling first and then brushing the grooves left brush marks. Brushing first and then rolling worked like a charm.