Problems with Input and jumping

[UNSOLVED]

Hello everyone! i have an issue that's been bothering me a lot. So, until recently, i had a jumping function in FixedUpdate that both detected the key and applied physics to the object in question. However, i decided it was more optimal to move the key-detecting over to Update because of various times where i tried to jump and FixedUpdate just didn't detect it in time. Horrible decision. Immediately upon doing so, i noticed pressing W does absolutely nothing when the player reaches the floor, furthermore, i can also jump with Spacebar? even though that was a thing i removed long ago. Please help.

Code (CSharp):

1.  
2.  
3. void Update()
4.     {
5.         if (direction && speed >= 0) {
6.         } else {
7.            if (speed < 0 && !direction) {return;}
8.  
9.            speed = -speed;
10.         }
11.  
12.         if (Input.GetButtonDown("W")) {
13.             if (!jump) {
14.                 jump = true;
15.             }
16.             if (touchingWall) {
17.                 jump = true;
18.                 if (direction) {
19.                     direction = false;
20.                 } else {
21.                     direction = true;
22.                 }
23.             }
24.         }
25.     }
26.  
27.     void FixedUpdate()
28.     {
29.         Vector3 targetVelocity = new Vector2(speed * Time.fixedDeltaTime * 10, m_Rigidbody2D.velocity.y);
30.         m_Rigidbody2D.velocity = Vector3.SmoothDamp(m_Rigidbody2D.velocity, targetVelocity, ref m_Velocity, m_MovementSmoothing);
31.  
32. //Code for restarting with R, not important to the issue
33.  
34.         if (jump) {
35.             jump = false;
36.             m_Rigidbody2D.AddForce(transform.up * thrust);
37.         }
38.     }
39.  
40.     void OnCollisionEnter2D(Collision2D col)
41.     {
42.         m_Rigidbody2D.gravityScale = 1;
43.         if (jump) {
44.             jump = false;
45.         }
46.         if (col.gameObject.name == "Walls") {
47.             m_Rigidbody2D.gravityScale = 0.2f;
48.             touchingWall = true;
49.         }
50.     }

NOTE: Variables are already defined, you might also find some unrelated code, please don't mind it.
NOTE 2: Although unrelated to this issue[?], my game ending mechanic has also been working weird since i made this change
NOTE 3: After further researching, i have found only walljumps vanish my ability to jump

 

Bump!