Type 2 bipolar and Omega 3 interactions

Hello,
I am new here but had a couple of questions. I've just recently started getting interested in natural healing versus all of the current chemicals I'm putting into my body. I'm taking Lamictal, Geodon, and Topamax for my bipolar disorder and depression, but was told to look into Omega 3. Can anyone give me any suggestions how to do the switch? I'm afraid to come off my medications all at once. Also, do you know if natural cinnamon capsules will interact with anything I'm currently on? I'm a type 2 diabetic also, so I'm looking to start taking cinnamon capsules so I can stop the avandia that I'm currently on. Is there an easy way to make the switch that won't put me at risk for a manic cycle or increased blood Sugar levels? I also suffer with panic, so will the Omega 3 help with that too?
Thanks in advance to anyone who can help me!