I have done quite a bit of touring and have quit a couple of tours. once I got sick riding from Atlanta to Washington DC. I dealt with being sick a couple of days and then it was cold and rainy for two more so I caught a train home and rode the tour a couple years later. Another time I got caught in a 100+heat wave riding from ST Louis to Atlanta. I was miserable and not having a good time so I quit and rode a Greyhound home.
Touring is suppose to fun if you ain;t having fun there is no point in doing it. taking a solo 1O week tour when you have relatively little touring experince is not usually a good plan. So hang up the guilt and take a weekend camping trip on the bike or do a 3 day tour . I find the little tours to be often more enjoyable than 10 week slogs across the continent.