Q.Am I Wasting My Time Keeping My Pepper Plants?
Good evening and Happy Thanksgiving! I have one each; a habanero, red ghost, and Carolina reaper plant. My habanero plant produced 22 peppers, my red ghost didn’t produce any as I believe it suffered sunscald, and my Carolina reaper isn’t a foot tall. My question is, am I wasting my time keeping the red ghost and habanero plants? The leaves are slowly falling, more so the red ghost than habanero, and my Carolina reaper stays under provided grow light.

Certified GKH Gardening Expert
It's your call whether you want to get them through the winter, but it is certainly possible to do. Perhaps the habanero will do better next year, and maybe the Red Ghost will do well next year in a more protected location. Here's an article about how to get your peppers through the winter months:
https://www.gardeningknowhow.com/edible/vegetables/pepper/overwintering-peppers.htm