Having gone through law school myself I can tell you everybody probably feels exactly the same way. When I was in law school my first exam was torts as well and I had a similar situation I was freaking out as well and I didn't do well on my torts exam a C+ not great, but after that exam I learned the importance of time managment and got A's on all the rest of my exams 1L and ended up finishing in the top 10% of my class at graduation.
Really don't even think about your Torts exam focus on what you have next what's done is done You probably did fine, but do not let this experience mess up your property, civil procedure, contracts and whatever other exam you have. Those are in your control and focus on each one.
Also remember no school wants you to fail out a few people in my class did poorly first semester and they had to take one exam class the next semester, but they all ended up doing well graduating, passing the bar, and I was actually in Court against one of the girls from my class that had a first law school semester and she beat me on a few issues in Court today and is a great attorney. The fact I got a better Contracts grade in 1L didn't really come up in our breach of contract case. : )
Do the best you can and don't overthink things that is number one problem law students encounter.
Good luck on the rest of your exams.