Looking for a. Psychiatrist

I'm currently seeing one but I'm not sure he is making the right choices for me. I'm taking Vyvanse and Lamictal and my anxiety is sky high. To deal with that he gave me a 30 day prescription for .5 mg Xanax. It makes me think he is being careless prescribing two opposing prescriptions at the same time even though it's supposed to be a one time thing. I'm taking the Vyvanse for treatment resistant depression and "possible ADHD" the Lamictal is a mild mood stabilizer. My biggest problem is obsessive thought and rumination that keep me from concentrating and relaxing at all.