Over on the righthand side of the blog is a link titled "Challenges", which takes you to a brief potted history of some of the "organised" schemes I've signed up over the years in an effort to get myself out on my bike a little bit more than maybe I normally would without some kind of "incentive" (if that's the right term).
I don't know about you, but I don't actually respond very well to the concept of a "challenge". I mean, I like to have goals, but as soon as I sign up to what someone else has defined as a "challenge", I swear my sub-conscious is quickly at work to invent ways not to do it! (I like how G.E. of EndlessVeloLove explored the whole idea of goals and resolutions in a January 2017 post -- my own experience feels very different from hers because she and I define the words "resolution" and "goals" in almost opposite ways -- but oddly enough, the end result is often the same!)
A classic example for me is the #30daysofbiking challenge that runs the full month of April. When I'm not riding my bike much, then, as much as I like the idea of "pledging" to cycle, even just a short distance, every single day, no way is that going to happen. And if I'm cycling quite a lot, then to be honest, I want a day off now and then! (And the various chronic physical difficulties I deal with often have my sports massage therapist and personal trainer reminding me that recovery is essential, that muscles can only grow stronger if they're given a chance to rest.)