When I was little, I always had long hair. One day, my mom had me go get it trimmed. I was around.. maybe 5 years old at the time. She got it cut off to right about my shoulders. I looked like Dora the Explorer, and I was so upset that she cut it that short. I have long hair now, and don't ever plan on cutting it short, but hey, I gotta say, I really like your hair short!! It definitely looks good, nothing bad about it. And this IS my honest opinion, I've seen tons of girls with down right bad hair, but your's isn't even close to bad. If you don't like it, you can always grow it back out.
I also have really long bangs, and in 4th grade and lower I had short bangs that went across my forehead. In 5th I put my bangs to the left side and grew them out. Now, my bangs are catching up to the length of my hair, but still shorter than my overall hair. I don't ever plan on cutting it back up to my forehead, but maybe up to my jaw if it gets too long.