Turning around a bad start

Got up to a bad start today.  Woke up and right off the bat started thinking about how someone at work let me down, took an opportunity to say something to make me feel better, but instead ignored me and made me feel worse.  But I think the real problem is that its November and my SAD is really strong now.  It is so easy to blame external situations for the way I feel, but I'm beginning to understand that the problem is really mainly internal.  (That is a difficult but extremely important thing to accept.)  I spent a while looking at sad videos on youtube, which of course only made me feel worse.  Then I decided I must take hold of this situation, nip it in the bud before the whole day is ruined.  At breakfast, I drank two cups of coffee and took 900 mg of St John's Wort (50% more than I usually take in the morning).  After that I had the urge to go lie down on my bed and sulk, but I resisted.  Sometimes you just have to resist those urges and make yourself do something.  So I came here and started writing this.  Actually, I am already beginning to feel the coffee and St John's Wort beginning to kick in.  The suns out, so I think I am now goinng to go out for a run/walk (I can't run far, so I stop walk when I get too tired).  Then I'm going to get busy on all the chores I need to do.  No sulking today!