Casts...
I was in a full-arm cast for a couple of weeks (arm permanently bent at a right angle), which I hated! Then I had it replaced with a shorter (below elbow) purple cast. At least I could bend my arm (scratch my ear, blow dry my hair, etc.).
I hated the way my arm felt trapped (I have claustrophobia), how itchy I felt, how difficult it was to bathe, and how tough it was to get dressed (it was fall to winter). But I loved not being able to cook or wash dishes! That was nice.
Oh, another thing they don't tell you about casts: When mine came off, not only was my arm scrawny and scaly (from dry skin), but my wrist and hand looked oddly hairy! It was very strange, but that all went away in time, along with the dry skin and loss of muscle tone. Whatever you do, don't scratch off the dry skin! You can get an infection. Just moisturize and don't look at it.
I know this sounds awful, but it's helpful to know how to deal with these things -- especially when they don't warn you at the doctor's office. Good luck and hang in there. I feel (or felt) your pain. And I never roller skated again.