What 5 things would I want if I was stranded on a desert island?

I would bring food, paper and pen, knives, clean clothes, and my computer. I have to bring food because it is one of the basic needs that we use everyday. I would bring paper and a pen. If I write something on the paper and put the paper in the glass bottles that I use for drinking water, throw it out and somebody picks it up and reads it, they might even let me get a ride on their ship. I would bring clean clothes so that I could dive underwater to fetch some fish and quickly come up and change my clothing. There might be sharks or box jellyfish in the ocean, so I want to bring a knife to stab the dangerous creatures in the ocean. I did not bring a bed because there is sand on the island, so I would just pile the sand to make a pillow and wear clothing when I am sleeping. I also want to bring my computer because I think it will be boring stranded on a deserted island with no one near me. It will be fun because on my computer, I could play games, search for books, and write in it.