Why do we create logos? At the most basic level, a logo signifies ownership, while individualizing that 'owner' – be it a company, a service, or an individual. Logos employ all forms of representation (abstract, literal, metaphorical, etc) to convey what this owner signifies. Eventually, a logo can build into a complete identity system that tells a larger story about the person, place, or thing it represents.
As you keep a process blog this semester, chronicling the journey of identity exploration, consider how this blog is an extension of your identity – and how you can tell your viewers a bit about yourself in the process. You are each familiar with your own identity and understand different ways to convey this (clothing style, music preferences, etc.). Instead of designing a logo for yourself (which can be an endless task for designers), create a mood or style board (a collage of interesting images/typefaces/colors/styles that speak to who you are and how you'd like to be represented) that can be used as imagery on your blog.
More info on mood boards:
http://www.design-skills.org/mood_boards.html
http://www.lifeclever.com/5-reasons-to-design-with-mood-boards/