Hi, I'd like to help you with your question.
There are many ways you can help yourself cope with a manic episode including:
Learn about Bipolar disorder- the more you know the more you can help yourself.
Understand when you start to feel manic episodes coming on- If you educate yourself and begin to understand more about your diagnosis, then you can start to learn the signs of manic and intervene earlier.
Be under the care of a psychiatrist and a therapist- I'm not sure why you are taking the medication you are right now, but it sounds like you need to see a psychiatrist for a full evaluation and the right medication. You also should see a therapist to help learn more about your diagnosis and to learn ways to help yourself. The support of a therapist is also vital to keep you on the right track.
Keep in touch with family and friends about your diagnosis- that way, if you feel a manic episode coming on, you can contact someone to help you. It would be better if you are not alone. Designate certain people you can call in an emergency and keep their numbers with you at all times.
Try to stay active and watch your diet- what you eat and how much exercise you get is important in keeping yourself healthy, involved, and alert. Get enough sleep and make sure you eat enough throughout the day to keep your energy up.
Maintain a good schedule and stick to it- the more routine you have in your life, the more control you have over your behavior.
There is also a book that can help you. It is called Surviving Manic Depression: A Manual on Bipolar Disorder for Patients, Families, and Providers by E. Fuller Torrey M.D. and Michael B. Knable D.O. You can find it on Amazon.com or your local library may have it available.
I hope this has helped you,