THESE FOUR WALLS ? LITTLE MIX

Hey there, this is my first tab, I hope this is okay. If you have some corrections 
or you find some mistakes, please tell me! :) xx

Bb 1-1-3-3-3-1
Gm 3-5-5-3-3-3
F  1-3-3-2-1-1
Eb 6-6-8-8-6-6
Cm x-3-5-5-4-3

Bb Gm
Bb
 I feel so numb
  Gm             F Gm  Eb   Bb  F
Staring at the shower foam
Bb                Gm               F  Gm   Eb
 It?s begun, the feeling that the end has come
    Bb               F
And now the water?s cold
Bb
 I tried to eat today
                F         Gm        Eb    Bb  F
But the lump in my throat got in the way
Bb                   Gm       F    Gm  Eb
 In this time, I?ve lost all sense of pride
      Bb               F
I?ve called a hundred times
      Gm         F            Eb
If I hear your voice I?ll be fine
     Bb               Eb   F
And I, I can?t come alive
(F)         Gm
I want the room to take me under
       F                  Eb
?Cause I can?t help but wonder
        Bb     Eb        F          Gm
What if I had one more night for goodbye?
                F (let ring)                         Eb                           
But you?re not here to turn the lights off, I can?t sleep
                   Bb   Gm
These four walls and me
Bb
 I lay in bed
       Gm      F     Gm   Eb
Can?t seem to leave your side
Bb                       Gm         F    Gm   Eb
 Your pillow?s wet from all these tears I?ve cried

Bb               F
I won?t say goodbye                                                                    
Bb
 I tried to smile today
         F           Gm          Eb   Bb  F
Then I realized it?s no point anyway
Bb                   Gm        F   Gm  Eb
 In this time, I?ve lost all sense of pride
       Bb               F
I?ve called a thousand times
      Gm        F             Eb
If I hear your voice I?ll be fine
    Bb               Eb    F
And I, I can?t come alive
(F)         Gm
I want the room to take me under
       F                 Eb
?Cause I can?t help but wonder
        Bb     Eb       F            Gm
What if I had one more night for goodbye?
                F (let ring)                         Eb
But you?re not here to turn the lights off, I can?t sleep
                  Cm
These four walls and me

Bb  Gm  Cm  Eb  F

    Bb               Eb   F
And I, I can?t come alive
(F)         Gm
I want the room to take me under
       F                 Eb
?Cause I can?t help but wonder
        Bb     Eb       F           Gm
What if I had one more night for goodbye?
                 F                                   Eb
But you?re not here to turn the lights off, I can?t sleep
                                
These four walls and me