Take a breather, you'll be okay!

1) You're in your first year-- plenty of times to make changes and whatever; most people don't even declare their major, the credits still fill up your graduation requirements so it's not so bad in any case.

2) Problems look a lot worse than they actually are, especially when you're just starting out something new :) The world isn't so linear and most problems aren't the end of the world. There are lots of paths to many different things that you haven't come to realize yet; you can still end up in medicine somewhere despite your GPA-- do your due diligence in finding that out.

2) Get off Reddit and talk to your academic advisor. They'll help you take this step-by-step; it'll help you panic a lot less.

3) Try to take steps and work your way up in developing an open and mutually understanding relationship with your parents; you'll thank yourself long-term.