frustrations

i took an exam earlier today. it was something that i was looking forward to. i thought i was ready. i thought i already had the basic knowledge. but then again, it was only what i thought. truth is, i wasn't ready for it. i didn't have enough knowledge. reality hit me when i took the test. it was so hard. i'm so frustrated with myself. i know i could've done a better job. i should've concentrated on reviewing. i should've...but i didn't.