I would say don't get attached to your bets if you are betting based on luck or have no skill, experience or knowledge.
This should also be applicable to in-play matches, and even it is beyond having good knowledge about it at times, for example, the match between Tottenham and West Ham United in October 18, 2020, Tottenham scored 3 goals before the first 17 minutes at the beginning of the match, and they were still playing 3 goals to nothing at the 81st minutes. People can stake Tottenham to win the game after the 3 goals in the first half of the match, but West Ham before 82nd to ending of the game equalized and played 3-3. People that will stake such game will put high amount of money, and they just lost it. Betting at times are just luck.
That's really annoying, when you already placed your bets thinking that the game was already finished since the score is really huge some might place bets with handicap to make something much decent.
Only to realize that shit happened when the opposing team makes a sudden comeback this really annoyed you, but no one can really dictate what possibilities can be done while betting in the live games bet.