Two finger tap causes jump bug

Hi guys. I am making game for mobile devices. But i m pretty new in touch scripts. So i wrote a code that jumps the player. But when two finger hit the screen player jumps 2x more. I can't disable multitouch. Because there is two controls on screen. Half of screen jumps other halfs attacks. If i disable multitouch we cant attack at the same time jumping. Here is my code

 Input.multiTouchEnabled = false;
         if (Input.touchCount > 0)
         {
             for (int i = 0; i < Input.touchCount; i++)
             {
                 Input.multiTouchEnabled = false;
                 Touch t = Input.GetTouch(i);
                 if (t.position.x > Screen.width / 2 )
                 {
                     Input.multiTouchEnabled = true;
                     if (t.phase == TouchPhase.Began)
                     {
                         anim.SetTrigger("Vur");
                         vurdi = true;
                     }
                 }
                 if (t.position.x < Screen.width / 2 )
                 {
                     Input.multiTouchEnabled = true;
                     if (t.phase == TouchPhase.Began )
                     {
                         if (grounded)
                         {
                             ziplaButonBasildi = true;
                             myRigidbody2D.AddForce(Vector3.up * jumpSpeed, ForceMode2D.Impulse);
                             anim.SetBool("Jump", !grounded);
                         }
                         if (gameObject.transform.position.y > 1f)
                         {
                             maximumZiplandi = true;
                         }
                         if (gameObject.transform.position.y < -1.58f)
                         {
                             maximumZiplandi = false;
                         }
                     }
                     if (t.phase == TouchPhase.Stationary || t.phase == TouchPhase.Moved)
                     {
                         if (ziplaButonBasildi == true)
                         {
                             Input.multiTouchEnabled = true;
                             if (gameObject.transform.position.y > 1f)
                             {
                                 maximumZiplandi = true;
                             }
                             if (gameObject.transform.position.y < -1.58f)
                             {
                                 maximumZiplandi = false;
                             }
                             if (maximumZiplandi == false)
                             {
                                 if (jumpSpeed < maximumZiplamaMiktar)
                                 {
                                     myRigidbody2D.AddForce(Vector3.up * 10, ForceMode2D.Force);
                                 }
                             }
                         }
                     }
                     if (t.phase == TouchPhase.Ended)
                     {
                         ziplaButonBasildi = false;
                     }
                 }                             
             }
         }

I tried somethings with multitouch but cant manage it. Any suggestions ?