commands that help to detect direction

West
/execute as @a[​y_rotation=45..135] run title @s actionbar {"text":"west"}
North
/execute as @a[​y_rotation=136..225] run title @s actionbar {"text":"north"}
East
/execute as @a[​y_rotation=-133..-45] run title @s actionbar {"text":"east"}
South
/execute as @a[​y_rotation=-43..43] run title @s actionbar {"text":"south"}

it helps you to learn about y rotation