Step 1: Get wood. Make a crafting table and wooden pick axe and or sword.
Step 2: If you haven't already, make a pick axe, then mine at least 30 cobblestone and coal.
Step 3: Make torches and a small wooden shelter. Make a furnace for later.
Step 4: Hunt for food with your sword and by then it should be dark!
I hope this helps you-Meep