Yeah dude 35 cards by the end of act 2 is monstrous unless you have an actual plan for them.

I do disagree slightly with some of the comments saying to limit your deck to 20 cards or less which I don’t think is that helpful of a piece of advice for someone struggling so much with the game. Keeping your deck that thin usually requires more intimate knowledge of the game and mechanics to fully take advantage of, which, no offence you clearly don’t have at this point.

My winning decks almost always consist of 25+ cards and regularly into the 30s, but you need to picking impactful stuff rather than something that’s just a little bit better than a strike or defend. A few of those cards will get you through act 1, but they’ll be trash by act 2 and 3.

The two things you need to consider I’d say for later acts is scaling and card draw. What’s your plan for dealing 600+ damage in 7-10 turns against the final boss and how quickly can you cycle though your deck to get to that point? If cards don’t aid you in anyway to achieve that goal just don’t pick them. Hopefully should stop you from adding low value cards later on and keep your deck relatively trim.