No offense, but...Im going to use this game as an example.
https://www.chess.com/livechess/game?id=2272452538
Trying to calculate 4-5 moves ahead cant be done, when your getting mated in 5-6 moves, youre hanging pieces, missing simple tactics, arent following opening principles.
Work on the basics, before trying to calculate deeper than youre capable, or need to.
I've been wanting to calculate better, because I have lost a couple games from miscalculation and it was only 4-5 moves ahead. How can I improve my ability to visualize the board and calculate?