It all depends on how much work you’re willing to put in! I’m in year 11 too, hoping to do medicine and ive picked biology, chemistry and physics to do next year. I get that same face whenever i say it too! I think as long as you get the grades you need in the subjects you’ve picked (which are all hard subjects) then your choice between lang and lit won’t matter. Im sure an epq will be useful too in letting you develop research skills. Im sure your choices are definitely manageable as long as you work hard to get the grades you need.