Earth release is a very strong Tech/Element to use in a battle. The most people in the shinobi world who does use Earth are Iwagakure. Earth is very weak against Lightning, Lightning can go right trough it like a Beam. Water is weak against Earth. Like someone use's Flow rampart and you use Water dragon against it it wouldn't work. Earth from being as hard as metal but also as soft as clay. Earth in Reality is very Important for us, We Walk on it, and we live on it. Earth in a battle... Can be used defenses or for offense. Those 2 Are the Important things to know in battle if using Earth Tech's. I'll tell you Earth user's. Kakashi - Third Hokage.
Earth Release is also a component of Lava Release, Wood Release and Crystal Release and Dust Release. The most Earth jutsu you need to use Snake Handseal and slamming their palm onto the ground.
Let's get started on the boring meditation, but let's add a fun twist to it, it will be pretty simple, take this knife made of rock, and cut all your skin off, ALL the skin, then afterwards i'll tell you what to do. Remember to become one with the stone knife.