It looks like you have too many intervals. They drain you. Rest is important, too. I mean even your shorter 4th day says HIIT.
Also, you don't have a single rest day, just one recovery day. Feels like you are trying too hard. Yes, almost everyone says that if you don't have hours and hours a week to train, it is better to use your limited time and train in Zone 4-5 as much as possible as you get more bang for your buck, but I would suggest you listen to your body and see if this regimen is not too much.