I've only flew for 10 years for an airline, and been on the ground for 4 years, I have to tell you, those 4 years really DOES something!
I agree with the LOT-MORE-EXPERIENCED guys who posted here.. you'll never stop learning, and you'll never stop making minor mistakes, what's important is that YOU TAKE IT SERIOUSLY, I personally think it's a good thing.
Because if you start ignoring those minor glitches, that'll be the beginning of possible disasters.
Boy, I could still remember some of the most imbarrasing things I've done...
Blue side up!