Time management

I am still struggling to estimate how much time certain activities will take. It never seems like there is enough time in the day or the week to get everything done (especially when you have to fit in testing and test prep!) I would rather have too much planned than run out of lessons for the day, but it causes me to constantly evaluate which lessons to cut or how to extend to give students more time. I do, in a way, like that part of teaching- the fluid and changing nature of the day. It keeps you on your toes to be continually assessing and making decisions about your next steps.