Change your Week (Created Date) pill to continuous, then right-click on the axis, choose Format then on the Axis formatting tab, change the Dates formatting to custom and put in something like this: yyyy, mmmm\ \Week
That will give you the following. You can play around with the coding in the format to get it just the way you want.
See attached example using superstore data.
Date Axis Formatting.twbx 1.2 MB