I signed up for the 12WBT and have walked around a local lake 3 times and been to the gym 4 or 5 time so far, and have been using the My Fitness Pal thing for the past couple of weeks.

And I attempted (and colossally failed) a high ropes course. Will try again in or around May.

So I'm doing ok

A long way to go, but progress, and the shift to actual 12WBT will be much gentler.