Yeah those are male parts and maybe I see a stigma also, if so a hermaphrodite, very sorry! Idk about trying to get seeds out of it, they might be prone to the same, you could ask around, but if you're just wanting to get high I wouldn't hold out much hope. Miracle grow has a bad rep but if it's working for you and fits your budget don't worry about it, idk about the coffee thing, had a bit of a giggle, still it's a super healthy plant, you're always gonna get yellowing/browning leaves especially after flower. If you're looking for the straightest path to a buzz, sprout all 5 seeds, grow them out a few weeks, flower and cull the males. If any chance of getting seeds off your current guy, I guess make sure they actually sprout before cutting it down.

Noooooooooooo, yeah it's a hermaphrodite. Did you get seeds that had been feminized? In the future, best to grow from natural seeds or cuttings.

In the future if you're unsure if it's a boy and have room/another small light, you can make a smaller area to place a cutting at 12/12 to force it to show and save time on the plant while you're still letting it veg out