only two comments: I can't wait longer. it misses any between wait and longer.
and the other: I've took my decision. It is either I took my decision, or I've taken my decision.
Best would even be: I've made my decision.
You don't. You can exchange the unwanted cards for another (probably more wanted) cards with PORTAL interface (accessible from the same menu as EVENTS).
It is pretty subtle, pay close attention to the text for the first gold disc you find. The game ended up being a lot of clicking around until you find something that reacts, like old 1980s/90s adventure games.
Thank you very much for these feedbacks. I will change this.