I'm a bit clumsy and reckless (not a good combination) in the kitchen, and there are two things that I have a healthy fear of, and approach with extra deliberate respect: caramelizing sugar, and deep frying.
Clear your work area, and double-check your start-to-finish assembly line. You don't want to be distracted, multi-tasking, reaching and going here and there when deep frying. For example, flour-eggwash-panko-pot-towel-drainrack-season-ovenwarm, you want it to be very orderly to minimize any chance for something to go wrong.
I gauge temperature as an inverse function of how much time I need cooking, lowering heat for longer cooking. So, a deep fried scoop of ice cream, for example cannot cook for long and therefore needs very high heat, or chicken thigh is best fried at a slightly lower temp than breast.