There are many many resources on the internet but you seem to have the ingredients necessary to start the process. I would follow these basic steps
(1) take some dry woody branches and lay them down on soil to create the foundation. This provides air to circulate from the bottom.
(2) On top of the branches, lay down alternate piles of dry leaves, grass clippings and soil.
(3) Water each layer if you are able to
(4) throw in some kitchen waste into the mix, if you have some.
Be patient because it does take time for this to work. You will have to maintain the temperature of the pile so it does not get too hot or too cold. Spray water as needed and turn the pile every few weeks to ensure that the outside part gets a chance to decompose inside the pile