No, I set my sites on what I can get by with since I can't drive and have pretty serious ongoing health issues. Chronic Bronchitis, Pneumonia twice in 4 years and a handicap that prevents me from driving a car... I'm a human being with issues beyond my control working them to the best advantage I can get in the hell I've been through over the last 15 years. Forgive me if this isn't a physics experiment on paper in a perfect friction free environment. Human beings have complications in their lives not explained away by formulas.
Have you ever thought of humbling yourself before GOD and asking Him for help? It works!