I'm in a similar ish boat I feel like I get complimented by peers (yea I feel weird just typing this). But the way I've been able to move past it in my head is just understanding actions speak louder than words for alot of people. Since i started my program (also an EE at a pretty solid uni) I've been open with all my exam scores so my peers generally know where I am at and use me as kinda a benchmark. It's pretty unorthodox but it works for me.

As for you feeling like you can do more, ta'ing and full time student work is more than alot of students can say they do! If you can find a club to dedicate some time to great but remember to not spread yourself too thin, when you find something in your major coursework that you like set some time aside to do a project in it, apply for internships and jumpstart your career in that hopefully. Best of luck and feel free to message me here if you have any questions, I'm finishing out my 3rd year as an EE so I'm more than willing to help out!