Things I noticed:
1) If you try an arm-bar or triangle and miss it, you can get screwed (so to speak). These have to be perfected, and should not always be attempted.
2) I don’t have any attacks from the half-guard, and had trouble getting full mount from half guard.
3) I need a rear-naked choke defense.
4) i don’t know what to do when someone stands up in my guard.
I offer these not as some kind of BJJ expert, but as someone who has been tapped. A lot.