First things first. See that no one gets hurt or falls overboard
. Stay in the cockpit
if at all possible - especially if it's just you and your wife onboard. No engine - just another thing to cause problems.
Second. Don't jibe. That could add "lose your mast" to your worries. Come up a little to a broad reach. If the sails
start to luff some, it's good.
Third. I assume the genoa is on a furler
. Roll it up. All the way. This isn't a race
. Going slow is fine. The boat will steer fine . Keep some tension on the sheet to keep things from wrapping.
Fourth. Go to a beam or close reach and put a big luff in the main. Let the boat slow down. If you had a preventer on the boom, release it (hopefully you can do this from the cockpit). If you have to leave the cockpit
wear a harness.
It should be now quite easy to put a reef in the main. Resume a broad reach course. Tack down wind if necessary (and don't be embarrassed to tack instead of jibe).
Leave the genoa rolled up until the boat is going slower than you'd like and your wife starts to look like she'll go sailing with you next time.