I’ve joined in with a couple of the Friday night Write Club events on Twitter and found it a great motivator. Participants write in half hour sprints, and tweet wordcount at the end to go towards a worldwide total for the night. There’s no target, no pass or fail - it just feels nice to be scribbling in virtual company, and to see how many words are being written everywhere.
The event moves from timezone to timezone, so there should be a convenient slot for you whenever your Friday night starts.
Account: @FriNightWrites
Hashtag: #WriteClub