Hello, thanks for sharing your experience with the game.
We are planning to add a feature to remove cards, just haven't had time yet.
I'm sorry that you miss the feature that lets you buy more time. We do plan to add back some sort of endless mode in the future, but we need to focus on the core gameplay first. What is it about that feature that you enjoy more than trying to beat many days in a row?
Just so you know, if you play the game through the itch app you can actually go back to *any* previous version of the game!