ABSOLUTE BEGINNER

Where's the mast?
Did you want a new project?

Oh yeah I see it.
What I mean is, you have been given a project.
You can buy marine non-slip, important thing to properly remove or prepare the area or it will flake off.

So long as what is on there isn't falling off, then you can sand and paint it. If it is peeling, then the issue is that you'll lose all the new paint, too. However, if one bit is peeling, you may not need to do it all, provided you don't find it all lifts as you investigate.

Almost impossible to tell how much work will be needed until you start work, but fingers crossed for an easy fettle this winter and fun in the spring.

Have you sailed before? If not, it will be worth getting some lessons! Learn in a dinghy, and you'll find sailing a small yacht like this very easy.

Ok, I understand now. I don't have an answer as to what paint would stick to the grip (first thought is that after a few months it will look worse than faded grip, and have less traction) but someone may know a way of doing it.

Worth checking, or getting checked, all the non cosmetic stuff, such as keel fixings and what she is like under the cabin floor before worrying about the paint.

Wet rubber is slipperier than ice, most (all?) functional non slip paints are AFAIK to some degree abrasive. Any paint on top of the present non slip will reduce it's effectiveness.