You write: < Wondering if I should keep a style journal to chronicle my ups and downs and see if my style crises tend to coincide with transition or other significant times.>
I say: yes, absolutely, do! It just so happens I did this very thing myself, starting last year in a notebook, and recently leafing through it I had an epiphany: I noticed that every year around mid-march, as winter is taking its sweet time to exit, I feel particularly blah and confused stylewise. I feel nothing quite fits. Analyzing this, I came to the conclusion that it must be the slow intrusion of whites and summer colors as well as lighter fabrics into an otherwise darker, heavier wardrobe. I want to wear a different palette, yet am stuck having to still put on my (darker) boots whenever I go out. This time of spring tends to also be messy, with the snow melting, and the dirty slush all around, so white jeans or jackets are still out of question.
I have been trying to circumvent this by wearing lighter garments with a warm(er) cami underneath and nylons, for extra insulation. It works for some, but not all items. For example, all the blue, white and red "marine" summer styles transition well at this stage, because items tend to be sturdier and thicker; however thin flimsy florals and pastels do not. This year, pastels happen to be huge.
This year, I had gotten myself a very simple, classic wool pea coat - something that one can't wear in the dead of winter, but that is perfect for now. It has helped tremendously. Mine is in navy blue, (not ink, but really navy almost royal). The cheery colour meshes well with more summery garments.