okay, here's some general ideas from looking at the game. later if you are interested, we can investigate further the individual moves that I am referring to in the game.
a) pawn moves are permanent, unless there are exchanges.
b) which squares that are controlled by the pawn moves are important.
c) blocked pawn positions usually require a piece sacrifice to open the pawn chain.
d) avoid developing pieces to squares where they can be attacked. then they have to move. it is a loss of time.
e) avoid launching an attack on BOTH sides of the board before you are fully developed.
f) don't drop pawns! they are little baby Queens waiting for the end game.
g) piece exchanges in combination with tactics. you had an opportunity later in the game to win your piece back if you exchange properly.
I hope that helps. good luck👍.
i just can't make it to 800. I have been trying my best to work on fundamentals and in this game, I just did not know what to do. My fundamentals were to develop my pieces, but he kept coming with pawns. I was befuddled and felt like this guy was cheating at some point (but i know thats probably not true). He just seemed to know how to keep me stuck. I made a few mistakes, but no blunders. I just don't know how to break the game open here. Thanks.
https://www.chess.com/game/live/100110763539