They difference medications wise is the add on of a mood stabilizer, and a probable reduction of your antidepressant. Antidepressants can exacerbate mania I bipolar disorder. Seroquel is an antipsychotic. You.may need a dose increases or an add on if your symptoms are not under control. There are many good books, or online resources that can help you understand the diagnosis better
I keep a journal to help me keep track of my thoughts and emotions. Especially if there are any medication changes. This way I can see if there are any positive or negative emotional or cognitive changes. Therapy is also different when dealing with bipolar disorder.

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