Help me create a Minecraft item

If you go to create something and select item you give it a name and then you can customize it in the editor that will pop up. But if you want a tool then you can create a tool in the tool section instead of item and then if it is a normal like pickaxe or shovel or something at the top of the properties you can change it to that or you can do custom and can make custom tools. I use this especially for tools that stay in the crafting table for crafts and get damaged instead of fighting mobs or mining blocks. Under the tool type there are speed and durability and more to make your tool the closest to want you want possible. And if you don't know what one thing is if you look at the name there is a small question mark in a square and if you hover over it with your mouse it will give you a description of what it does.