It is my favorite season, but my least favorite!  I feel you.  So much going on and such a busy time that I feel like I end up just needing to rest and have the same depression after.  Its like people want to get together just during that time.  Last year I made the effort that I didn't need to do all the things.  I asked my family to help me.  And I cut back on shopping, let someone else do it.  I have a great support system but still sometimes it depends on me and my body and really setting boundaries because they don't understand why I can't just "get together."  And I try to rest as much during Thanksgiving and New Years as possible.  Enjoy the quiet time.  Those are things I do!