What is wrong with me?

im in the middle of doing exams in school, i have noticed recently that i feel like **** and i dont know what it is that is causing this. i started gettin eczema for the first time in my life a few months ago and keep wprrying that it is going to get worse. last week i started getting a fungal infection in my groin which made matters worse. i keep worrying about using steroid creams, i have tried using natural remedies, they dont work for me.also i found it difficult to sleep last nyt, then i had an exam today, im normally a happy person but i feel like my life is in shambles and everything is on top of me! i feel like i hate myself. does any1 know wats rong with me at all?