My schoolwork is suffering because of my bipolar 2...?

my grades in science and tech classes have been significantly dropping because of me being diagnosed with bipolar 2 and i havent gotten medication for it yet and i probably wont for a while yet but in the meantime i need to know how to deal with it and get the motivation i need to be able to pass my science class because my teacher said, "you should probably drop down to applied science because your 50% average isnt good, and the exam is worth 30% of your grade and if you fail or get a low mark youll have to do it over again." and i didnt know what was going on with me until i found out i have bipolar #2 disorder (mostly depressive). what can i do about it i dont even feel like showing up for class because i have no motivation and im starting to have random emotional out bursts from all the stress and anxiety,......what am i going to do help !? also none of my teachers knows im bipolar...