Signs I am too tired to Spanish

Duo prompted me that I hadn't yet done a lesson for today; as I am tired and cannot brain at all, I eschewed either "lesson of new stuff" or "review of weakest words comprehensive of all I've done", both of which require brain and lead to frustration upon repeated failure, for "review of one of the early lessons", which doesn't so much.

At one point I got the sentence "I write a letter" to translate into Spanish via refrigerator magnet style selection from word pool. And they had "lee" and "leemos" and "lees" but I spent literally several minutes staring at the selection of words wondering why I couldn't find the first person form "leo".

...after which I realized that, oh yeah, leo isn't there because leo means I *read*, not I *write*.

Yeah.