I've come to the understanding that it takes twice as long to gain fitness/ability back than it took to lose it. Maybe I'm an outlier, maybe not.
I took 6 weeks off this winter, it took me about 3 months to return to "normal."
The winter before, I never stopped.
The 2 winters before that, I took 2 months off (half of November, December, half of January) and it took 4 months to return to the old metrics of ability.
Strava is awesome. But, having actual metrics quantify how much "suck" I've allowed myself, sucks.
Stick with it, you'll be fine.