How Do I add turn based combat on these scripts in unity 2d?

I am working on a game and I am totally stuck on what to do here. My problem is that I want a turn based combat for my game like a pool game or tic tac toe or anything. I am working on local multiplayer where screen needs to be divided in two parts. Upper part for player1 and lower part for player2, So far I am also not able to do that. Each player will get 5 turns. Player will take turn one by one until all 5 are taken.

The controller script on my both object is :

Vector2 startPos, endPos, direction;
Rigidbody2D myRigidbody2D;
public float Power = 10f;
public float maxDrag = 5f;

void Start() {
     myRigidbody2D = GetComponent<Rigidbody2D> ();
 }

void OnMouseDown() {
     if (Input.GetMouseButtonDown (0)) {
         startPos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
     }
 }

void OnMouseUp () {
     if (Input.GetMouseButtonUp (0)) {
         endPos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
         direction = startPos - endPos;
         myRigidbody2D.isKinematic = false;
         Vector2 force = startPos - endPos;
         Vector2 clampedForce = Vector2.ClampMagnitude(force, maxDrag) * Power;
         myRigidbody2D.AddForce (clampedForce, ForceMode2D.Impulse);
     }
 }

There is an empty gameobject named battlehandler that should handle the turns but I am stuck; the script is:

public enum gameState { Start,p1Turn,p2Turn,Won,Lost}
public class battleSsystem : MonoBehaviour {

public gameState state;
int randomTurn = 0;

int p1TurnCount = 5;
int p2TurnCount = 5;
bool flag = true;

// Start is called before the first frame update
void Start()
{
    state = gameState.Start;
    StartCoroutine(setupBattle());
    randomTurn = Random.Range(1, 1);
    if (randomTurn == 1) {
        state = gameState.p1Turn;
        Debug.Log("P1 Turn");
        p1TurnCount--;
    } else if (randomTurn == 2)
    {
        state = gameState.p2Turn;
        p2TurnCount++;
        Debug.Log("P2 Turn");
    }
}

private void Update() {
    if (state == gameState.p1Turn) {
        p1Enable();
        p2Disable();
        if (flag) {
            p1TurnCount--;
            flag = false;
        }
        Debug.Log("p1 has left: " + p1TurnCount);
    } else if (state == gameState.p2Turn) {
        p1Disable();
        p2Enable();
        Debug.Log("p2 has left: " + p2TurnCount);
    }
    if (p1TurnCount < p2TurnCount) {
        state = gameState.p2Turn;
    } else {
        state = gameState.p1Turn;
    }
}

IEnumerator setupBattle() {
    yield return new WaitForSeconds(0f);
}

IEnumerator p1Turn() {
    p1Enable();
    p2Disable();
    yield return new WaitForSeconds(10);
}

void p2Disable() {
    GameObject[] objs;
    objs = GameObject.FindGameObjectsWithTag("p2");
    foreach (GameObject p2 in objs) {
        p2.GetComponent<ballController>().enabled = false;
    }
}

void p2Enable() {
    GameObject[] objs;
    objs = GameObject.FindGameObjectsWithTag("p2");
    foreach (GameObject p2 in objs) {
        p2.GetComponent<ballController>().enabled = true;
    }
}

void p1Disable() {
    GameObject[] objs;
    objs = GameObject.FindGameObjectsWithTag("p1");
    foreach (GameObject p1 in objs) {
        p1.GetComponent<ballController>().enabled = false;
    }
}

void p1Enable() {
    GameObject[] objs;
    objs = GameObject.FindGameObjectsWithTag("p1");
    foreach (GameObject p1 in objs) {
        p1.GetComponent<ballController>().enabled = true;
    }
}

I want to select a random turn at first then change the turn after the selected player has made their turn.

How should I tackle this problem?

I am making a turn based game and I want to switch turns after a user is done back and forth. I cant use update as it will restart the turn every frame.

public enum gameState { Start,p1Turn,p2Turn,Won,Lost}
public class battleSsystem : MonoBehaviour { public gameState 
state; int randomTurn = 0;

int p1TurnCount = 5;
int p2TurnCount = 5;
bool flag = true;

// Start is called before the first frame update
void Start() {
    state = gameState.Start;
    StartCoroutine(setupBattle());
    randomTurn = Random.Range(1, 3);
    if (randomTurn == 1) {
        state = gameState.p1Turn;
    } else if (randomTurn == 2) {
        state = gameState.p2Turn;  
    }
    if (state == gameState.p1Turn) {
        Debug.Log("P1 Turn start");
        p1Turn();
    }
    if (state == gameState.p2Turn) {
        Debug.Log("P2 Turn start");
        p2Turn();
    }
}

IEnumerator setupBattle() {
    yield return new WaitForSeconds(0f);
}

void p1Turn() {
    Debug.Log("inside p1 turn");
    p1Enable();//enables the player 1 controller
    p2Disable();//disables player 2 controller
}
 
void p2Turn() {
    Debug.Log("inside p2 turn");
    p2Enable();//enables the player 2 controller
    p1Disable();//disables player 1 controller
}