im a beginner but what i know is that the most powerful magic ingredients are focus,intent and utter belief. thats why the most effective spells are those that you will create yourself. thats why your spell worked so well and so fast because it was created by you and for you so your powerful wanting and energy made it work. so there is no such thing as a *accidental* spell. we are always in the process of creating something as long as we are wanting and thinking and casting spells is a way of focusing all your energy into your intention then releasing it into the universe with no resistance and utter belief that it will manifest.
hope this clears up some things for you