In fact, it is quite the opposite. The 30-year-old, 1.90m goal defence has been "killing" herself at training to help "get rid of some frustration".
The Mystics have had their share of rotten luck in recent weeks.
They lost by one goal to the Adelaide Thunderbirds on Saturday after a questionable contact call went against Vilimaina Davu in the closing moments of the game.
The penalty allowed the visiting side to drop in the match-winning goal.
Against the NSW Swifts a week earlier, the Mystics were convinced they had more time left on the clock when the final whistle sounded.
According to the umpires they did not, and the match ended with a 63-62 win to the Swifts.
"I know, I know. It is little a bit frustrating but life goes on," de Bruin sighed when reminded of the past two weeks. You can't do anything about it now.
"We were bitter right after the [Thunderbird's] game but it does not help to dwell on things. If we dwelled on it we probably wouldn't be focused on the next game."
The umpiring in the ANZ Championship has provided ample material for post-match press conferences.
Several coaches have been outspoken about the different interpretations from one side of the Tasman to the other.
But despite being burnt by the odd strange call, de Bruin had plenty of sympathy for the umpires.
"It is tough on them because it is a faster game and there is a lot more pressure on them than there was in the past. So it is also an adjustment for them and not just the players."
The Mystics are in eighth place, with three wins from 10 matches and play the Southern Steel in Auckland on Monday.
The teams last met in round five, with the Mystics winning 50-48 in Invercargill.
The Steel built an eight-goal lead but crumbled in the final quarter.
However, de Bruin was not expecting a similar collapse.
The Steel has improved since that match and after three consecutive wins will be a much tougher opponent, she said.
"You can't really look at the past . . . I think both sides are a different team from when we met last time.
"They've got a lot of confidence . . . but we've also got more confidence than last time. Although things have not gone our way, we are still pulling out some good stuff, which is exciting for us.
"We don't have anything to lose so the pressure is off us and we can just enjoy ourselves now."
The Steel, though, has to win the match to keep its play-off hopes alive.
