Just go sailing is good advice.
However, as one who has fifty years experience at fixing crazing, spider cracks, stains, discoloration, gel coat oxidation, etc. I'll offer a comment. Anything you do with polyester based gel coat repair compounds, compounding, waxing, will end up a different color and you will put in a lot of work for a very temporary effect. Generally in less than a season the oxidation will be back and you will be back where you started.
Do all that prep one time, use epoxy based compounds for repairs, then paint the whole thing with a catalyzed polyurethane such as Interlux perfection plus or Awlgrip, and forget it for five years or more. Overall, you will spend less money, time and labor.