I think you have made a good choice to get help. Once you find a doctor follow the advice, don't do like me and think you know more that the doctor.

I would think I was better and quit taking my meds, etc.
I would suggest you start journalling and keeping track of your moods. It will be a big help in the long run strategy of your health. Like I have finally realized that I'm affected by the seasons, so my doctors know what to expect when winter sets in and I need adjustments to my meds.
In your journal see if you can start to identify triggers, so you can work on either handling or avoiding them.
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Bipolar I, Depression, GAD Meds: Zoloft, Zyprexa, Ritalin
"Each morning we are born again. What we do today is what matters most." -Buddha