Issues with player movement

Hey all,

I've looked at a lot of solutions, I've tried out a bunch, and I'm just not finding an answer, and I've tried re-writing my code a few times and it just hasn't worked out. What I'm currently working with is below, and I've been able to make my character shoot a projectile, I've been able to make them jump pretty well, but movement is being a pain.

What I'm attempting to do is make a 2D sprite move left and right with keyboard input (A and D respectively) and when it moves left and right, I want it to rotate 180 on the y so it faces the direction that it's trying to move. Right now when I hit "D" it turns the sprite to the right, and starts moving left. When I push "A" it moves to the left and doesn't rotate the sprite.

I know this is probably a really simple fix, but I'm very new to Unity, and I can't seem to figure this out. I did have a basic movement script before using transform.translate and that allowed me to move left and right but it seemed like the scripting I have now is more realistic?

Also if there's any way I can clean this up and make it better, I'd love to hear. Thank you all in advance!

using UnityEngine;

public class PlayerControl : MonoBehaviour { private Rigidbody2D playerRb;

 public GameObject shotPrefab;
 public Vector2 speed = new Vector2(10, 50);
 public Vector3 turnRotation = new Vector3(0, 180, 0);

 public float horizontalInput;
 public float verticalInput;
 public float jumpForce;
 public float gravityModifier;



 public bool isOnGround;

 // Start is called before the first frame update
 void Start()
 {
     playerRb.GetComponent<Rigidbody2D>();

 }

 // Update is called once per frame
 void Update()
 {
     horizontalInput = Input.GetAxis("Horizontal");

     // Move the player using interface

     Vector3 movement = new Vector3(speed.x * horizontalInput, 0, 0);


     movement *= Time.deltaTime;

     transform.Translate(movement);

     if (horizontalInput > 0) // Rotates character 90 degrees based on input
     {
         transform.localEulerAngles = turnRotation;
     }
     if (horizontalInput < 0)
     {
         transform.localEulerAngles = -turnRotation;
     }

     // Allows the player to jump
     if (Input.GetKeyDown(KeyCode.Space) && isOnGround)
     {
         GetComponent<Rigidbody2D>().AddForce(new Vector2(0, jumpForce), ForceMode2D.Impulse);
         isOnGround = false;
     }

     if (Input.GetKeyDown(KeyCode.LeftShift))
     {
         //Launch a projectile from the player
         Instantiate(shotPrefab, transform.position, shotPrefab.transform.rotation);

     }


 }
 public void OnCollisionEnter2D(Collision2D collision)
 {
     if (collision.gameObject.tag == "Ground")             // Verifies player is on ground

     {
         isOnGround = true;
     }
 }

}