HELP! There is a pony that I may be riding for some one else and basically im 5ft 2 and 48kg and this pony is.... 12 hh. Am I small enough to ride it? Its not rode often I suppose it will be quite, chubby. And, if I can, how long can I ride for? I don't mind looking like a giraffe riding a mouse (lol) but I really need to know.