Our lives are a sum total of the choices we have made.
The biggest questions that always have perplexed me are "Where do I come from?" and "Where am I going?"
How others treat me is their path; how I react is mine.
Examine what you believe to be impossible, and then change your beliefs.
I've been an exercise maniac most of my adult life, running marathons and triathlons, doing that as a regular way of life. I ran eight miles a day, every day for 29 years.
Attitude is everything, so pick a good one