how to improve in chess
To improve, play and analyse your lost games.
You do not win or lose because of the opening, but because of tactical mistakes.
Establish a regular study routine that includes time for studying chess books, analyzing games, solving puzzles and playing practice games.
Improving Your Chess - Resources for Beginners and Beyond.....
https://www.chess.com/blog/RussBell/improving-your-chess-resources-for-beginners-and-beyond