Mirror mode requires VIP if that's what you're looking for! Injection is mostly now used only for suicide botting, also, the stuff you have mentioned about detection, there is always a difference, Jagex's system aren't sophisticated enough to know if you are using this script specifically or any other in that case. You probably got banned either due to: flagged IP, free proxy, vpn service, or because you run too many scripts at the same time.
You gotta make sure you space out your botting habits like you would be playing the game normally. For example, no human would spend 4 hours on quests straight off tutorial island, that's too fishy and Jagex's systems will flag your account for monitoring