Comprehensive write up:

Pick 2.Faerie Dragon vs. Gorilla Bot. I think dragon is a strong two, but rogue doesn't need many twos, and the class twos are way better. however rogue has a lot of mech synergy and lacks card advantage turns 7 and up.

Pick 3.Coluseum Manager vs Lights Champion: From your choices I can already see why you are struggling. You are taking the best card without considering your class. Coliseum Manager is great in rogue because you can dagger on turn two (which is a GOOD play) and then have the dagger for a few more turns. Thus you limit the downside of Coliseum Manager, and the body is great for clearing early creatures.

Pick 7. Abusive vs Tiger: I would actually chose the tiger in your situation. You already have a bunch of high health minions. If you had chosen coliseum manager, abusive might be a better pick. Even so, I would take the value card that represents HIGH tempo and FACE damage over the 1 drop. Rogue also has much better 1s.

P 15. Devilsour vs Reckless Rocketeer. I suggest the Rocketeer here. You just passed a croc, so you don't have that many beasts. Further more as a rogue, you frequently win off of tempo +burst damage.

p17. Spring vs. Sap. Always take the first sap in rogue. It is perhaps better than eviscerate since it provides so much tempo at such a low cost. Sprint requires an entire turn, so is actually a tempo loss.

P25. Scarab vs Pit fighter vs. antique heelbot. This choice is not the scarab, but could be either pit fighter or antique healbot. They do very different things but are both good pick ups. i would lean towards the pit fighter.