There's a Game Reports / Help! section where these posts are supposed to go, although it looks like they haven't been used in a while.
It might help if you could explain how you lost - what did your opponent do, what did you do? If you have trouble answering these questions, then it's a sign you should be paying more attention to what they're doing.
In the specific kingdom here, there's a lot of fancy stuff you can do but the core is going to be using Fishing Village for actions, Wharf + Torturer for cards and attacks, and then some mix of Haggler, Lurker, Swindler, Upgrade, Forager. This kingdom is complicated because you plausibly want almost every card in the Kingdom at some point (except for Death Cart).
The other option for cycling through your deck is going heavy on Minion, combining it with Fishing Village, Swindler, Haggler, and Forager to get use of each of your 4 card hands, but I think this will be worse than the Wharf and Torturer route.
I would open Forager/Swindler, get Fishing Village and Wharf from there, then pick up Lurker and Haggler once the deck is going a bit. If you get a good Swindler hit or if your opponent buys Lurker, consider buying Lurker sooner. The Forager is to get early trashing in, the Swindler is to add early disruption and to get a source of +$2 because you want to hit $5 soon for Wharf or Torturer.