How I got myself to go back to the gym (even though it’s a chore and I’m terrified of it)

I’ve been trying to get back into working out (with varying levels of success) for almost three years. I hit my fitness prime in undergrad — I never turned into a star athlete, but I exercised daily, sometimes several times, and went to the gym at least 5 days a week, even if it meant only going there for a half an hour on my lunch break…