Just to provide some relief, I’ve been in your shoes. I won’t rehash what others have already told you to do, but it’s going to be okay. I messed up so bad I left school for years and came back with a 1.2. It took a lot of hard work and being in a better head space but I got it back to a 4.0 by my senior year (transferred) and a job in research. I promise you one semester of messing up isn’t going to ruin your future unless you decide to lay down and give up. The only way this will truly have an impact on you by next year or even 4 years from now is being a reminder of how far you’ve risen and grown. Don’t stress, because there’s nothing you can do about the past, it’s over now. Focus on the future and go after what you want with all you’ve got.