Editing Animations crashes Unity

I fixed this because I realized that I was playing two animations at once. I had an animation playing, and then when i pressed the mouse I wanted a different one to play. When i pressed the mouse, unity froze.

Basicly what I was doing wrong was that I didnt stop the first Animation from playing. I set the transitions to go off a bool, and so inside each button I used, I needed to set all other bools to false before setting it to false. heres some code:

  Animator anim;
     int walkHash = Animator.StringToHash("shouldWalk");
     int idleHash = Animator.StringToHash("shouldIdle");
     int hitHash = Animator.StringToHash("shouldHit");
     int jumpHash = Animator.StringToHash("shouldJump");
 
     private void Start()
     {
         anim = GetComponent<Animator>();
     }
     private void Update()
     {
         if (Input.GetKey("w"))
         {
             anim.SetBool(idleHash, false);
             anim.SetBool(jumpHash, false);
             anim.SetBool(idleHash, false);
             anim.SetBool(walkHash, true);
         }
     }

then I did this for every button I wanted to trigger an animation. So far I have w,a,s,d,space and mouse 0. hope this helps someone.