A group of my girlfriends have a challenge going: do something each month that stretches and scares them.
Since this is a group of athletes, the challenges are pretty much athletic in nature: hit a new PR for a distance, do a triathlon, cycle a time trial, do a different kind of race.
Me with my Achilles tendons, my challenge for this month is to clean out my closet and cupboards. Definitely a stretch and scary..... we have so little space in the RV, it's all at a premium, and I tend to accumulate stuff, and what will I do with the stuff I clean out of the storage space???
I got the closet done; cupboards are next. The closet only took 2 hours. I had to store my hiking backpack and all its contents in the backseat of the car, which we rarely use, to make room in the closet, which I do use.
I think my scariest and most difficult challenge, though, is sitting out this Achilles issue. I'm afraid losing my cardiovascular fitness. Running, walking, and even biking are out. Swimming.... well, I don't swim strongly or fast enough for it to count as aerobic. It's more like stretching. I asked the PT about pool-running and she was afraid of that much resistance causing dorsiflexion and extension of my feet, so that's out.
I'm getting stronger with my pushups and PT, but I am going to need to build my aerobic base back up when this resolves. I'll probably be out for another month at least. Then I need to rebuild slowly, being extremely careful of my tendons and guarding against too much too soon, to walking 8-10 miles at a time, to be ready to start the AT in the spring over mountains with a 30-pound backpack on.
I find this very scary.