If anyone needs a spring boost, other than just running, you might be interested in the 5x50 challenge. I first did it five years ago, when I'd just finished c25k, and it was a good way to keep motivated. It was originally meant to be 5k every day for 50 days (which I was not in the least bit likely to do), but there are various alternatives - eg a gradual build up day by day, or 30 minutes of any exercise you like. There's a 'team' for "Beyonders 2018", from people who did c25k on here.
It started on Sunday, but late arrivals are still welcome (it says until midnight tonight, but I think it's been extended to 31st March now).
You can get sponsored if you want to, but I'm just doing it to make myself get fitter again. It prompted me to come back onto HU after a long break, and re-reading posts made me decide to go out and do a little run, even though I'd already done 30 minutes of Pilates. So, one mile run done, first one since November. All good.