Stop stressing. This is really quite simple. Pack any electronics in your carryon bag. I always put my cell phone/charger, video camera, digital camera, gameboys, dvd player in one bag. In my ziploc baggie goes a 3 oz shampoo, 3 oz conditioner, hand sanitizer, suntan lotion, travel size toothpaste/brush, 3 oz mouthwash. All my meds go in a baggie of their own (my choice not TSA's)..that way security can see what's what in one look.
With three of us traveling, I always have the bag with the ziploc toiletries in it, the changes of clothes, swimsuits and travel documents. DH gets the bag with the electronics, as well as his laptop if he is bringing it. Dd has her own bag with her books and snacks in it. So, when we get to the security area, off come our
Crocs, they go into the first bin, then our bags go on the belt, dh opens his bags of electronics, we go through the scanner, put our Crocs back on, grab our carryons and head to the gate. It is a well oiled process.
There isn no need to worry or stress. Take your time, don't get flustered and you'll be fine.