My suggestion is to avoid using an electric shaver all together. (I find it tends to pull the coarser male hairs through the guard and pinch leading to some serious serious abrasions and rash OUCH.) For the most part I wet blade in the shower or tub (or sink now, since I'm essentially homeless.) In between, I've found using a buffer (basically fine grit sand paper.) before the hairs get too long works wonders for exfoliating AND keeping the hair away longer. Obviously, moisturize, and baby your skin. Witch Hazel works great for irritation. I try to avoid any such 'aftershave' products.
Once in a while I'll use a glycolic acid (5%-10%) cream product on really serious ingrown hairs. Above all else, PATIENCE. I've done some serious hack jobs on myself (and still have scars) when I was much younger. Take your time, It'll just keep getting easier and easier.