e4 e5 Variations


I guess you mean as black?
Off the top of my head..
Spanish, Italian, 4 knights, Scotch and then some uncommon ones like the Danish, center game, and ponzioni.

Based on your games, forget about openings, But...obviously if you wish to waste your time studying them that is your choice. But this all you need:
Opening Principles:
1. Control the center squares – d4-e4-d5-e5
2. Develop your minor pieces toward the center – piece activity is the key
3. Castle
4. Connect your rooks
Tactics...tactics...tactics...
Pre-Move Checklist:
1. Make sure all your pieces are safe.
2. Look for forcing move: Checks, captures, threats. You want to look at ALL forcing moves (even the bad ones) this will force you look at and see the entire board.
3. If there are no forcing moves, you then want to remove any of your opponent’s pieces from your side of the board.
4. If your opponent doesn’t have any of his pieces on your side of the board, then you want to improve the position of your least active piece.
5. After each move by your opponent, ask yourself: "What is my opponent trying to do?"

Based on your games, forget about openings, But...obviously if you wish to waste your time studying them that is your choice. But this all you need:
Opening Principles:
1. Control the center squares – d4-e4-d5-e5
2. Develop your minor pieces toward the center – piece activity is the key
3. Castle
4. Connect your rooks
Tactics...tactics...tactics...
Pre-Move Checklist:
1. Make sure all your pieces are safe.
2. Look for forcing move: Checks, captures, threats. You want to look at ALL forcing moves (even the bad ones) this will force you look at and see the entire board.
3. If there are no forcing moves, you then want to remove any of your opponent’s pieces from your side of the board.
4. If your opponent doesn’t have any of his pieces on your side of the board, then you want to improve the position of your least active piece.
5. After each move by your opponent, ask yourself: "What is my opponent trying to do?"

I have never found e4 e5 intuitive at all, seems a lot more can go wrong for black than the d4 d5 equivalent. I usually chicken out and play a Philidors (e4 e5 nf3 d6). Boring but the tactics seem more tame.
Possibly of interest:
Discovering Chess Openings
https://web.archive.org/web/20140627114655/http://www.chesscafe.com/text/hansen91.pdf
First Steps: 1 e4 e5
https://www.newinchess.com/media/wysiwyg/product_pdf/7790.pdf