Gilgamesh was not an ordinary person he was considered a super human and two thirds god.
Anu asked to create a beast like man strong as Gilgamesh.They named him Enkido.
A hunter saw Enkido near the water whole and told Gilgamesh. Gilgamesh got a lady named Shamhat and Enkido fell in love with her and changed his choice of heart.
Ishtar got Enkido dressed up to meet Gilgamesh. Gilgamesh and Enkido did not like each other so they fought. But Gilgamesh finally won and they had truths. Gilgamesh and Enkido became best friends.
They loved adventure so they went to the cedar river to defeat Humbaba. The saw Humbaba and started attacking him. Humbaba asked to spare hiss life but they said no. They created a boat with all the wood and sailed home.
They made it home with a hero's welcome. Ishtar then fell in love with Gilgamesh. Gilgamesh didn't like her back he just teased her. she got full of anger and used the bull of heaven to go against Gilgamesh. But Gilgamesh teamed up with Enkido to defaet the bull of heaven.