Trouble downloading iTune purchases

My music app on my MacBook Air has been "loading cloud library" for about a week with no results. It will not download purchases I made from iTunes Store on my phone. I have updated my OS with every update, the most recent 2 days ago. I am connected to the internet - I'm typing this, right? What can I do to fix this? I would like to listen to my purchased music on my MacBook. I do not subscribe to Music.