How do I get through my depressive episode (i'm bipolar2) until I can see my dr?

Call your Dr. Don't be afraid to call your doctor if you are feeling that your symptoms are more urgent. Don't wait until you need to go to a hospital to ask for the help you need. I don't know your medication history, but lithium is a good medication which has antidepressant effects as well as mood stabilizing properties. If you have often struggled with depression, consider this. Best to you!
Exercise. Aerobic exercise for 30 to 60 minutes a day has been found to be more effective for depression than antidepressents. I would also socialize, as much as you can, with family and friends.