It's time to get out of your depth, do something that you always thought was too hard. You can either say yes to something you'd normally say no to, or seek something that you've always baulked at for fear of failure, and embrace it. It could be asking for raise at work, taking on a particular responsibility, maybe something physical. Whatever it is, make it a sink or swim moment, and you might just surprise yourself at your abilities! Then, come next wild wednesday, it won't be scary any more.
Wild Wednesdays, scare yourself a little, grow a lot more.