Hi love, what a lovely name
You start playing better gradually. I also like most of your analysis. I'll just repeat / expand a bit on it:
Clearly the highway + free buys strategy can be very strong, but no trashing is annoying. So you'll have to be very careful about the kind of "stop cards" that you add.
In the deck you're trying to build: Silvers are bad, Golds are bad, Militia is bad, Horse Traders is bad, Merchant Guild is really bad. None of them help you draw more highways.
Highways are great. Grand Market is important to have, but not as important as highway.
Bandit Camp + Journeyman is quite good, because it can draw you more highways. Focus on these once the highways are gone.
Obviously you can't start the game by skipping all the bad stuff, when all the good stuff costs $5 or more. However, do not add more of the bad stuff then absolutely necessary to get the good stuff. If you're well into the phase of buying $5+ cards, and then have a bad turn with only $3, buying nothing is much better then adding Silver.
so... well played in the last game on turn 6, 8 & 10. I like everything you do up until you get the treasury. Treasury isn't a bad card, but it's just not worth the $5 it costs here. In stead keep adding village+draw. Still, you're winning this game... just don't resign. You're playing a strategy that makes your deck exponentially better over time... don't be afraid to fall behind a bit on points in the process.