Based on 93.6% RTP: to clear the 40x wagering requirement on a $750 bonus, you'd need to wager $30,000 total. At Moon Race's RTP, the expected loss through the wagering period is ~$1920. Manageable if you're a regular pokies player.
Pokies are designed to be entertaining. Set a budget before you play, take regular breaks, and only gamble with money you can afford to lose. If gambling stops being fun, help is available.