Question How to use Gyroscope and Finger dragging together?

Well hi, I am tyring to make a 3D Environment with a skybox. This is the code of the camera controller. First, I created the variables to use. Then I check if a gyroscope is available in system, if so, this code enables it. In the update method, I checked if a finger is touching the screen. Based on this, _checkTouch changes to true or false. if it is false and _gyro is not null, the application uses the gyroscope. If a finger is touching the screen, then I use transform.eulerAngles to rotate the camera. Gyroscope uses transform.Rotatearound().
So, the problem arises here. I rotate the camera with my finger, then use gyroscope to rotate it. After I use gyroscope and rotate around, If I rotate the camera by touching with my finger, the rotated camera snaps back to where i left my finger. How can I solve this problem? Is there any better way to implement this?

Code (CSharp):

1. public float horizontalSpeed = 10f;
2. public float verticalSpeed = 10f;
3.  
4. public float yaw;
5. public float pitch;
6. public Animator animatorObj;
7.  
8. private Gyroscope _gyro;
9.  
10. private bool _checkTouch = true;
11. public float x;
12. public float y;
13. public float gyroSensitivity = 20f;
14.  
15. private Vector3 _previousPosition;
16. private float _distanceMoved = 0f;
17.  
18.  
19. public Vector3 currentEulerAngles;
20.  
21.  
22. private void Start()
23. {
24.     //Check if gyroscope is available
25.     if (SystemInfo.supportsGyroscope)
26.     {
27.         _gyro = Input.gyro;
28.         _gyro.enabled = true;
29.     }
30. }
31.  
32. void Update()
33. {
34.     //check if the camera is rotated with finger
35.     if (Input.touchCount > 0)
36.     {
37.         _checkTouch = true;
38.     }
39.     else
40.     {
41.         _checkTouch = false;
42.     }
43.  
44.     //Finger Dragging
45.     yaw -= horizontalSpeed * Input.GetAxis("Mouse X");
46.     pitch += verticalSpeed * Input.GetAxis("Mouse Y");
47.  
48.     x = Input.gyro.rotationRate.x;
49.     y = Input.gyro.rotationRate.y;
50.  
51.     if (_checkTouch)
52.     {
53.         currentEulerAngles = new Vector3(pitch, yaw, 0.0f);
54.         transform.eulerAngles = currentEulerAngles;
55.     }
56.     else if(_gyro != null && _checkTouch == false) // If gyroscope is available
57.     {
58.         Debug.Log("gyro");
59.         transform.RotateAround(transform.position, transform.right, -x * Time.deltaTime * gyroSensitivity);
60.         transform.RotateAround(transform.position, Vector3.up, -y * Time.deltaTime * gyroSensitivity);
61.     }
62.     else
63.     {
64.         Debug.Log("no gyro");
65.     }
66.  
67.     //Enables rotation after the animation ends
68.     if (animatorObj.GetCurrentAnimatorStateInfo(0).IsName("CameraAnim") &&
69.         animatorObj.GetCurrentAnimatorStateInfo(0).normalizedTime >= 1.0f)
70.     {
71.         Debug.Log("Done");
72.         animatorObj.applyRootMotion = true;
73.     }
74. }