I've had clinical depression and anxiety problems for 2 years now ( wow its really been that long

I am a top 10 university student, and I've been getting average grades despite anxiety problems and the firm belief that I don't remember anything about my course when I sit the exams. I guess I obsessively think about my memory not being good enough, and I do know that this worrying isn't helping anything, but I just can't help it despite having many counselling sessions.
I was just wondering if anyone has experienced the symptoms I'm about to bullet point, or have any advise on them, if I should keep pushing my doctor for another diagnosis.
- I know I've never had amazing verbal fluency or literary skills ( and I have recently discovered that I have dyslexia ) but my vocabulary is dire ! I can't seem to find the right words. And struggling in conversations to get my point acrossAnd any learning of new vocabulary is to no avail. I soon forget the words I've been trying to learn. Also writing is a mjor problem for me. I'm certain that I sound like a 12 year old.
- I've become a slower thinking, and my analystical skills and higher processing isn't anything what it used to be.
- I can't remember names of past aquitences, or what they are doing now. I girl came up to me the other night and asked questions about information I couldnt remember telling her. I couldn't even remember what she was studying let alone which uni she went to.
- I have a poorer knowledge set than all my friends. They all know so much more than me. And even if I spend time trying to improve myself I can't remember it so whats the point ??
- I'm constantly worrying and comparing my memory and intelligence to others. If I can't remember a fact, I then stress and if prevents me from ever remembering it.
These are just a few of my issues. But I would appreciate it if anyone could get in touch with me to let me know that they have been experiencing these symptoms. My doctors says that my memory problems are due to depression and lack of concentration... But I'm not sure I believe him
x