To Help You?

I've watched lots of tutorials but they don't really help me as they are just repeating the same things.

public float runSpeed = 5f; // controls player's speed

private float moveInput; // will tell the computer to move the player later on.

private Rigidbody2D rb; // this will be the rigidbody the forces will be  applied to.

private void Start () {

rb = GetComponent<Rigidbody2D>(); // the game needs to know which object to apply forces to; it won't automatically know it's supposed to move the player

}

private void FixedUpdate()

{

 moveInput = Input.GetAxis("Horizontal"); // Input.GetAxis("Horizontal")  is a shortcut you can use in unity to use the arrow keys/ A&D keys to move forward
  rb.velocity = new Vector2(moveInput * runSpeed, rb.velocity.y); // will cause the rigidbody to move depending on which buttons you press

}

/* This should get your character to move left and right,  but not up/down. If you want them to move freely up and down, write  :

moveInput = Input.GetAxis("Vertical"); right under  moveInput = Input.GetAxis("Horizontal"); . Jumping is a little trickier. 

since you need permission to use other people's work for this jam, I hereby declare that anyone participating in this gamejam can use this comment and it's contents to use in their games for whatever purpose. */