Hi.
Don't Bid Early. Bidding early will only increase other buyers' interest in this domain. The more bids for a particular domain, the more interested this auction has, the higher the price. It is better to use special tools that will bid 5 minutes before the end of the auction, just set the maximum acceptable price for a given domain.
Make bids in small increments. It makes no sense to overbid for a domain, you only need to outbid a competitor.
Analyze more topics to find domains. You can spend extra time analyzing related niches whose links would fit your site. So you can find more suitable domains and not overpay for expensive domains.
Don't waste money. There is no point in trying to win an auction if the bids for a domain are already inflated. You can just search for other domains.