Actually you don't "have to" go to a job fair. If you're pushing very button you can, and checking very box you can, job fairs is on the list.

121 is a good addition to your resume. Like you said in a diffferent post, you're learning and gaining experience. You'll be better from the experience. That's part of your professional developement as you transition from mil to civ flying. Some of it's just different.