I cant Walk On my Foot Because of my Wart? What Can I Do!?!?!? PlEASE HELP :[?

You just got them frozen off... The black color is from the temperature at which the warts were burnt off. Your foot is sore and its going to take awhile for a place with that amount of work done on it to remove warts to heal. Just give it awhile and I would ask a nurse at school and tell her the situation and ask if you can use some crutches...