A couple of years ago I had 5 months off. My main problem was not getting back on the bike and getting fit, It was that final push to get the Final bit of fitness back. It was all mental, but I had a reason not to push uphill, I had a reason to take a shorter ride, and I had a reason to always be back with the new rider. What I did was set myself a target ride, a hard one that I had not done for a few years. I had 6 months from setting the target to the ride, and let everyone know that I was doing it. I no longer had an excuse. I had to get fit, but it was not until I set that target that I finally got the brain kickstarted into action to do the extra training to get my fitness level up to what it should have been.