Likely as a level 2 CC your country club has not won any course builders by finishing in the top 500 to get a free one from WGT (course builders needed to "publish" a Custom Course) in a Clash, and at level 2 you do not get free ones monthly (you need to be level 18 CC for that).
Now you can edit it just select the course and edit. But you can not play it in your CC until you have a course builder - so the only option is to buy one for 400 credits = but at your level and need for clubs I would advise against that.
EE