I have this difficulty.
I am very bad at adapting existing lesson plans.
I know this is bad, because what am I going to do when I'm out there in the real world, come up with all my stuff from my head?! Surely not.
Or maybe so. I swear I'm not THAT much of an overachiever, so most likely when I get Out There, my crazy brain will take it down a notch and I'll be able to use someone else's stuff. But in the meantime, anything "someone else" is 95% unusable.
I'm hoping to be posting some of my lesson plans/ideas on here, in case anyone else has a mind like mine and likes my ideas. Feel free to steal. :)