Why are you struggling? Look at your calendar…
You’re not following the plan.
You’re stacking workouts back to back to back and skipping prescribed rest days, and then you are adding additional TSS through outdoor rides on top when you should be doing low intensity active recovery.
Consistency is key. Mid-volume is no slouch of a plan, it’s a lot of work. You need to utilize those recovery days and the low intensity days to let the legs actively recover or you simply will begin to dig yourself in and your workouts will suffer.