It is as said normal to feel wobbley, we’ve all been there. Keep at it, and gradually you will feel more at ease. It takes time to learn balance, and to strengthen your muscles. When feeling down, just think of the hockey matches you’ve seen, and tell yourself that in a few years time you will be whizzing around on i e, pushing a puck about. It is amazing fun. Keep at it.
I second classes, maybe group at first, but if you can afford it do one on one, but make sure you do several hours on your own after each half hour lesson.