What's med school like, stress wise?

So I'm being forced into med school overseas most likely next year. I am currently doing very poor in my subjects of physics, chem and bio (I'm in year 12) and have no passion for medicine and stress out a lot very easily and have depression.
I just want to know how bad med school gets, maybe if it's really bad and i can get some good stories about how bad it is, i can use it against my dad. Thanks guys :)