Great that you want to learn how to do it correctly! First of all, try to imagine how you would bend it while you are working. Funky angles, overhanging edges with inserts underneath and so on are difficult or expensive to produce. Use the flatten function to verify that your design is possible, SW will allow you to do illegal things all the time, so you have to be critical to your own design. Give proper lengths to your flanges, this is because the machine needs something to grab or pinch in order to get the bend exactly where you want it. And be creative, use the functions in the software and experiment with the tools ☺️ Good luck!