New to Blogging

Im not the type of person to even consider blogging, to me it seems kind of creepy. Having strangers I have never even seen before read what I am feeling brings a whole new meaning to the phrase "stranger danger".  The only reason I am doing this is for my college writing class.  I am NOT very good at grammar or proper spelling (sometimes). I consider this blog kind of unprofessional, or relaxed so I really see no need to worry about these sort of things (unless my professor whats me to use proper grammar and spelling.