Yes, it is a good idea to understand the difference between a draw and a win in chess.
When you understand my answer to your question, then you will win more games.
It is most likely that your chess games are draws because of the stalemate rule.
To avoid a stalemate draw: make sure they can move, or make sure they're in check.
• Check: A direct attack on an opponent's king by any piece or pawn.
When placed in "check", the player must get out of check
on the very next move by any of the following 3 ways:
¹ Move the king to an unattacked square.
² Capture the checking piece, and then no longer be under attack.
³ Place a friendly piece between the king and the only checking piece.
• Checkmate: When their king is in "check" and they cannot get out of check.
When you checkmate their king, you win the game.
• Stalemate: When a player to move in NOT in check, and has no legal moves.
Any move they would make with their king would put their king in check and
they have no other pieces that can move. This game ends in a draw.
A completed drawn chess game can result from any of these following situations:
• Drawn by agreement: Both players agree neither can win.
• Stalemate: When a king too move has no legal moves, is not in check, and
no other pieces on the board have legal moves.
• Three Fold Repetition: When it can be proven that there has been
a position on the chessboard is about to have been repeated three times
(the repeated position does not have to occur consecutively).
• 50 Move Rule: When it can be proven that there has been
no piece captured and no pawn moved for 50 moves.
• Insufficient Mating Material: Neither player has enough material to checkmate.
Examples: lone king against lone king; lone king against king and bishop…
• Insufficient Losing Chances: In a sudden-death time control,
when a player has less than five minutes on his clock,
other than by losing on "time" he/she could not lose,
the player may make a claim of "insufficient losing chances" to the director.
The tournament director may choose to call the game a draw.