Questions from a "Flawless Noob"

Went to the Lighthouse for the first time today as a solo (not counting a handful of carries in D1 and D2 Y1). It was by the skin of my teeth -- needed to have two losses forgiven on my mercy card -- but I'm turning 52 soon and am happy to have made it :-)

Anyway, I've never had to think about farming adepts before but I am hoping to get a few more adept Igneous hammers before reset. I've only got a few more hours to play between now and Tuesday and my chances of resetting and going flawless again in that time are pretty low. So is the best plan for me simply to keep playing on my current card, hope for some adepts to drop as rewards, and then turn my card at the end of the weekend for another guaranteed adept? Or do I lose the ability to trade the card in for an adept if it's "broken" after I lose another game?

Thanks for any help/sanity checks with this. I've looked around the sub and Internet a bit but there's some outdated info out there and I figured that folks here could answer this easily.