Lizzie,
As a 50+ year old female, I find I often run into strength issues, especially if they are hand strength issues. I keep a pair of channel locks for the same reason as prpl lady mentioned.
get a drill with socket adapter for the levelers... then you don't need any strength and just have to bend (or squat) for a very few minutes.
are you using electric tongue jack to lift hitch to connect the weight distribution bars? Makes lifting in place and hooking latches easy. I use a hammer/pair of pliers for putting in/taking out clevis pins for sway bar.