Also if conditions are very rough you can consider "an exaggerated tack". So instead of a gybe, you can turn the other direction and tack through the wind, 270 degrees or more. It's much more benign. Not very racer-like but safe..
We learned this as the infamous "chicken gybe". It works, but if you don't have a preventer or whisker pole rigged to get in the way of things, the easiest (and probably safest) way to turn around is to just head up and drop the genoa. I'm guessing your boat behaves well under main alone, so you should be able to sail a bit while you take the genoa down and get a smaller jib up.