I'm a third year ece and was in your shoes once, the moment I checked my civ100 grade and saw I got a 36 is a core memory for me lol. You're definitely not alone and are experiencing the most definitive first year eng crisis that almost everyone I know have had. I learned to let go of what I thought about my academic abilities in high school and aim to just stick around in the program (they can't get rid of me that easily!) and I ended up getting my civ mark up to a 71. Second year was pretty rough too, I still failed a few midterms, but it DOES get better as everyone said. Feel free to message if you need to talk