No experience with Azalea issues but I'll follow along and maybe learn. I was gifted one earlier this year. I have no clue but it is in the ground and for right now looks a tad better than yours.
Yes, you have Canna rollers but again, I have no experience with dealing with that headache.
On the geranium, I love them for their willing blooms but they seem to melt in the heat of summer. By the time they look ugly, I feel ugly about them and toss them in the compost.
What's this?
#1 familiar but not sure
#2 purslane
#3 sedum
#4 split leaf philodendron
Hang in there Brutus!
Pretty grouping of plants you have... at 6 o'clock in the photo is a Hoya (aka wax plant)
And isn't that just like one of our pets to look at us like ~ why are you looking at plants when you could be looking at me!
I actually think you nailed some of your own questions with your statement about watering. All the plants you have require different care. Sorry but it isn't a one size fits all.
Ditto on your location in this great state. It may help us better answer your questions. And
to the Texas forum.