Hummingbird issues with cache

The plugins on my site don’t seem to be communicating well, and it’s making it difficult to identify opportunities for improvement.
Some pages tell me page caching is set up, others say it’s not, my performance score has only gone down.
I thought using these tools would make it easier to optimize my site, but they’re proving to be extremely complicated and the Hummingbird CDN does not seem to be working can you help me?