There is no such opening and you are asking the wrong question.
For a start an opening is a series of moves played by both sides. So for example, white might play e4, if he thinks that the French Defence (1. e4 e6 2 d4) is the opening he would most like to play against. However, black might not play e6. He may play e5 or c5 or something quite different. So there is no one opening that you can play. It depends upon what your opponent would like. At present I am really interested in King's Gambit. In particular, I like 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Nc3. I think this is an exciting line for white. So I play e4 every game I play as white. But black does not always even play e5. Even when black does play e5 and I can play f4, lots of times black does not take the pawn. So please forget the idea that there is a magic opening that can make you a strong player.
Honestly, at your level (which I hope you won't mind me classifying as beginner) you should pretty much forget openings anyway. You should focus on opening principles and seeing tactics. cherub_enjel often posts on these pages and says that the reason that most games are won and lost at levels below about 1800 is because players hang pieces or don't notice that their opponents have hung pieces.
Here is a nice post about how to play the opening - https://www.chess.com/forum/view/chess-openings/basic-principles-of-chess-openings
Steve
This is not my first time on Chess.com I have been using different accounts for years now.
My game isn't pretty good. I only have a score of something like 750, and I was just wondering what opening would really put my opponent in trouble and give me an advantage.
Thank you.
lucfredrickson22