Two touches not working as expected

So I've got a little space game where if you touch on the left side of the screen, your ship moves, and if you touch on the right side of the screen, you fire a laser. I'm not sure what's wrong with the code below:

 // touches add thrust and fire laser
         int tapCount = Input.touchCount;
         for(int i = 0; i < tapCount; i++)
         {
             //Do something with the touches
             Touch touch = Input.GetTouch(i);
 
             if (touch.position.x > Screen.width / 2 ) {
                 FireLaser();
             }
 
             if (touch.position.x < Screen.width / 2 ) {
                 thrusting = true;
             }
         }
 
         if (tapCount == 0) {
             thrusting = false;
         }

It doesn't act as expected. A single touch on either side of the screen works as expected (thrusts or fires a laser). But, if while thrusting, you touch on the right side of the screen (so two touches), it will fire a single laser but then won't register further touches on that side of the screen. If you try to fire a second laser while thrusting (again two touches), it doesn't work. You have to release the thrust-touch before you can do another laser-touch.

Basically, while you're holding down on the left side of the screen to move, it only lets you fire laser / only registers one touch on the other side of the screen.

Additionally, if the "FireLaser()" if statement is below the "thrusting" if statement, it doesn't fire a laser at all.

What am I missing here?