Can someone help me make a survival manual for an island (imaginary)?what tools can i make and how to use them? what food can i eat and where can...

One of the first things that you will need to do is to
find a source of drinking water. This should be one of your first priorities. The
farther inland you go the more likely you are to find fresh
water.

As far as food goes, almost anything can be eaten
including insects. I am assuming you will be on a deserted island so sea animals are a
good option. There should be lots of fruits available as well. Coconuts are an excellent
option if they are available.

You will also need to find or
build a shelter. You could use a cave as a shelter or use products from
trees.

And of course you will need tools. Tools can be made
out of materials from the trees. You can also use rocks, sea shells and coconut
shells.

Rules will need to be established. There should be
a group leader and decisions should be based on a majority vote.