Will I really commit to this?

SO...almost 8 months ago I decided that I was going to start blogging...this is my second post so I obviously didn't get much past the incarnation stage. I did set up my own blogger web page, and have today just set up a twitter account. I feel almost left behind in some dark closet not having participated in these ever more fundamental and less vacuously trendy technologies. I love txting, but I can barely get my closest friends to convert on that front. At least most of them now own cells. Thus, in an effort to not be left behind I am reaffirming my intent to start blogging and keeping a daily journal of my life. Part of my problem is that I don't know whether to throw my whole life at you or just showcase the parts that I want...I lean towards showcasing but then wonder if I showcase more than one aspect of my interests, what will the reader think without knowing me. This gets at more of the crux of the problem, "what do I want the reader to think, and do I want the reader to know me?" As desperate as any other human being for recognition, I still want keep my clothes on and will just have to remain nervous about sharing to the anonymous world in wide.