3 shot arrow/arrow going vertically

[ItsAssasin]

Hey! im doing weapons for my minigame and one of them is a bow that shoots 3 arrows (1 to the front, 1 to the left and 1 to the right) in the style of the hypixel skyblock's terminator.
The problem is that if i face towards north or east the arrows go correctly but if i look towards west or east the arrows go vertically, this is my skript:

       spawn arrow at player's head
       push last spawned arrow in direction of player at speed 2
       spawn arrow at player's head
       push last spawned entity in direction of player at speed 2
       push last spawned arrow right at speed 0.5
       spawn arrow at player's head
       push last spawned arrow in direction of player at speed 2
       push last spawned arrow left at speed 0.5

Thanks before response!

Edit: I FIXED IT
If the player looks east or west i make the arrow go north or south and vice versa, here is the code

       set {_face} to player's horizontal facing
       shoot arrow at speed 2
       shoot arrow at speed 2
       if {_face} is north:
           push last shot arrow east at speed 0.5
       if {_face} is east:
           push last shot arrow south at speed 0.5
       if {_face} is south:
           push last shot arrow east at speed 0.5
       if {_face} is west:
           push last shot arrow south at speed 0.5
       shoot arrow at speed 2
       if {_face} is north:
           push last shot arrow west at speed 0.5
       if {_face} is east:
           push last shot arrow north at speed 0.5
       if {_face} is south:
           push last shot arrow west at speed 0.5
       if {_face} is west:
           push last shot arrow north at speed 0.5

I hope that someone finds this useful!