Yea, the slugs are not piping in here! I fall down somewhere in the middle.
It's pretty hard to get much hiking/camping in with temps in single digits. When it's this cold, I go snowboarding, which uses the wrong muscle set for hiking. I'm currently on the treadmill every other day on it's highest incline, at 3 mph, for one hour, with squats and upper body work thrown in. In March (May 1st start), I'll start carrying my pack (25 lbs with food/water), and get back out for a few four day hikes and over-nighters. I did my shake down hikes last fall, so now all need is practice with my gear.
I'll be starting out slow on the trail. And I'm in no hurry, and for once in my life, my goals will be different. I understand the attraction of bragging rights for pack weight and miles/day. I used to be very goal oriented. This hike, my goal is to take my time and more fully appreciate the journey. And that's no criticism of anyone else's hike.
As I have been out hiking more and more, I find the mindset come about naturally.