First period locations are now available through the cypress website. Please navigate here to see the full page.
The document is located on this page and can be viewed by anyone without a login. The page consists of a giant list of literally every single kid in the school and you have to control f to find your name. Once you find your name, your room number should be on the right side.
If you're first period has a "Junior Priv" next to it, then head over to this link to find your second period.