Switching between Anger and Depression Rapidly

the last 4 months have been hell.  I'm still on meds but it's like nothing I've experienced before (30 taking meds since 14)  I can usually talk myself through a bout of depression because i'm use to that, but when i shift from hating the world and everyone in it with a passion to guilt, depression, hopelessness and then back to anger like four times in a day or more. Well like i said before its hell.  I literally feel physically ill all the time from the extreme emotion alone.  When I am able to sleep it isnt restfull.  I have my first appointment with a psychologist next week (was in therapy for years then stopped when my symptoms were managable)  My psychiatrist is utterly useless when it comes to talking about symptoms he has three answers for me: change your diet; excercise; or you know drugs can't solve everything.  So my question (finally) is:  What are some ways to deal with/manage the above extreme emotions? preferably without medicine switching. Please Help