Self doubt is a bear

It's not always easy when you are challenging yourself. I find myself slacking on my milage for the first time in any race training here in my second week. I have been sick and that has gotten me behind. We'll see how I feel after my long runs this weekend. I am still a really heavy guy even though I have lost the majority of my excess fat and the pounding my joints are taking is starting to worry me. I really hope I can do this.