Cold ponds? You're in Richardson, tx right? What cold ponds are you referencing if you don't mind? As a general rule, once the temp gets in the high 80s or hotter, I would suggest fishing 2-3 hours during sun up or sun down. Overnight fishing is always an option in the hot days. Granted..you CAN catch fish in the middle of the day, but unless you can cast out to a very deep hole, it's simply better to fish at the coolest points of the day.
"but I still may take a year's break."
Wrong...wrong time of year to even think of that. The fishing season is just about to start! I'd say start mapping out where you want to fish, learn the structure, find your bank locations and get ready for the cooler weather which is going to turn the fish on big time. Cut bait, live bait, works good in the coming months.