In the past week I’ve done lots of work with eBay (in an attempt to get a vintage Parker 51). Any what I’ve found is that the other bidders seem to be able to outbid you instantly after clicking “confirm bid”–this is because of auto-bidding. To enable auto-bidding, when outbidding someone type in your maximum you’re willing to pay. This way when you’re outbid, eBay will automatically up your bid $0.25 above the other person’s bid. This will continue until either the auction ends or the item bid goes above your maximum bid.
Consider this to win more auctions.