Tall people make a big move from the left big hold on the arête to the jug on the right arête. For short it’s easier to make one move up with your left hand first before going to the jug.
Rain sucks, but broken holds suck even more. Remember, never climb on wet rock in Fontainebleau.
The sandstone becomes brittle, and pulling on it will ruin classic problems. Drying it doesn't help, because it's still wet and weak inside.
All you can do is wait for better conditions.