making paths  

In photoshop press P on your keyboard or just click the pen tool in your toolbar

 

now click and hold the left button on your mouse and start drawing

if you pick your finger off the button on your mouse just go back to the square on the line you made last and click and hold and draw from there

Ok a pretty ugly shape eh? now just right click and hit fill subpath and it will fill the color in

there you are done, to delete the lines after word right click and hit turn off path or just hit delete on your keyboard