Write a postcard to yourself from a small win

My small win was [WIN] and the evidence I can point to is [EVIDENCE]. Write a 120-word postcard from my present self to my future self, with one sensory detail only if supplied, one sentence about effort, and one realistic next invitation. Keep it warm but not grandiose; do not invent a struggle or predict success. Add a two-line fact check separating supplied facts from metaphor. Verify that the postcard celebrates the actual action rather than a claimed outcome I did not establish.