Hey, you're doing fine Ge0. The way you do works nice and we all do the same for the longest time and still doing it.
Yeah some 3d printed or cnc/formed brackets can work too. You can save space or weight but not money lol. If you can use a CAD software, just go for it now!! There'll also be endless projects inside the house and backyard with CAD. (I actually have not been to any CAD school other than 1 semester of 2d drafting during freshman year... not too difficult.)