I bought XOM at 33 after the Arabs did their thing, was VERY close to selling it at near same price. I screwed up and sold NCLH/RCL two days ago... because like a idiot I thought i'd jump back into them at a lower price. Of course they are up 40 percent since. Was only about 3k though so no huge deal. Learned a lesson though , its not worth it to gamble to try to get a better cost basis. Sometimes 3/4ths the way to the bottom is better than trying to hit the very bottom. Lesson with the cruise lines saved me from cashing out early on the airlines and now riding that train up. Or maybe it will all still crash and burn, we'll see.
Best thing I read here was "yolo account". Having fun with these individual stocks yoloing. I'll let the invisible hand run the show in the 401k.