Hey Duke
I've found it useful to keep a journal. Looking back I was pretty low the first 2 weeks and then I could see a clear steady improvement from that point onwards. This last weekend (30 days) was the first time I felt really buzzing with energy and was itching to get to the gym yesterday. My sleep is still disturbed, but I trust that will improve in time.
It could be your physical recovery is faster or slower, but keeping a journal may really help you see the progress.