Slay The Spire

Hello, I am in love with the game BUT I am kind of harstuck on A9 so I thought why not ask for some advise :) So here is the rundown of how I got here and I guess I'll try to describe what I am doing and where I am failing :)

So I made it to A4/5 on intuition alone (I havr like 200hrs in STS1) and then I got the advice to take more fights and less questionmarks and that kind of catapulted me to where I am now. I try to take 1-3 questionmarks per act and get a good mix of elite and Campfires in, totally dependong on what needa more. Around one shop per act dependeand on the path, usually late. Generally going into a run I'll try to grab the first actuall good damage card and then a good block card and see if I can build a synergy from there.

Now starting A9 I mostly get killed im the first 5 hallway fighta and I have no clue why. :/ Does anyone see a glaring problem with my gameplan so far? Am I maybe misjudging the power of somr cards amd thus taking the wrong cards?

And advice welcome thanks for taking the time!