How to Cut or Trim Your Own Bangs. Wispy, jagged or straight bangs are great for providing shape to your face. They're also the perfect disguise for a high or narrow forehead. It's a good idea to have your bangs professionally cut and then opt for self-maintenance with the following tips. This way, you won't need to determine the best shape, balance and length yourself. Check out the steps below to learn how to cut your own hair. Read more: http://www.ehow.com/video_17113_cut-t...