I am wondering if it is more “under recovering” than “overtraining”. That is a lot of stress from driving and lifting so you have to take that into account and that little sleep too on top of it. I agree with the comment above about the possibility of an inaccurate ftp but I would also think about your life/work/training stress load. Switching to a lower training volume might help until you get adjust to the total stress load and then increase from there? Just my two watts 
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