Emotional support animals

I plan to study abroad in the next few years and, although I've never seen a psychiatrist or anything, I am fairly certain I have anxiety. I can tell through my daily interactions and I am a psychology major so I used the manual to kind of self diagnose myself. I wanted to go talk to my college counselors about getting an emotional support dog soon so we can build a bond and then he/she can come abroad with me. Many airlines will require a letter from a mental health professional saying that I am under their care and the dog is vital to my mental and emotional health. Do you know if a college counselor is a mental health professional? In the sample letters, it provides a license number and where the professional works. Would a college counselor qualify, or does it have to be a qualified psychiatrist? Would it depend on the counselor's qualifications? Thank you so much!