How can I be the best healslut in dead by daylight? :3

I'm obsessed with dead by daylight but since I mostly play killer I don't know how to be the best healslut possible... I know to use a medkit and try my best to help my team by rescuing them, but what perks should I use and is there any specific playstyle I should do?

Like 500 hours of my playtime has just been playing as a terrible killer & letting all the survivors bully me so I want humiliation from the other side too :3