@soulstalker You know that you can play a warlock that neither casts darkness nor has devil's sight, but... I really agree with @Evades that darkness needs to be able to be cast on your weapon and so move with you.

I am not personally so worried about not being able to shoot in and out since I mostly make my warlock melee based, often with a great sword, but in principle I agree that shooting in and out should be possible. This will make you more vulnerable to archers/casters as they will then also be allowed to attack you albeit with disadvantage in contrast to now, where they just stand there doing nothing or moving in to attack with melee.