Hi and welcome to DWD. Can I ask how old you are? Have you told your tutor how bad you are feeling? What's the course and the placement? I did teacher training and I know I had better placements than others and I know that a friend of mine hated his so much that he worked out that career wasn't for him so he dropped the teacher training. He's now doing brilliantly working all over the world.
You mention counselling, did you get that through your Dr? Are you on meds? Oh and you're definitely not "lame"