Crochet frustration

I have been making a crocheted 'companion cube' tote and on Friday I ran into a bit of a snag. I had just spent about 2 hours making what I thought was good progress on the design when I realized that it was no longer symmetrical. I started undoing rows to get back to my goof (apparently I had skipped a stitch along the way) and was dismayed to discover that I had pretty much goofed right at the beginning of what I had started that day. Disgusted, I didn't work on it all weekend. However, I picked it back up this evening and now I'm almost finished with the front design! Here's how it's looking: