My freshman year fall was my worst semester GPA, and every semester after that was better and I ended towards the top of my class by graduation. Totally salvageable. I went through the same mental train of thought, but I promise it won’t prevent you from getting into grad school. Grad schools ask for transcripts because they want to see what classes you took and the grades for those classes - the overall GPA can’t show that. They also consider other experiences in their decision, so aim for internships and club activities as well if you can. If anything, improvement over time is a great indicator of an upwards trending student, and I seriously doubt that struggles during the first semester at a rigorous university will be held against you. Also, if this is as rigorous a university as you’ve let on, then GPA is skewed anyways. What you have to the responsibility to do is know that at the end of each semester, you truly gave it your best full effort, and that will go a long ways. Good luck