How are you different from the stereotypical "average person" in your country?
Feel free to define "average" how you see fit. This isn't about debating what is average person. Comparisons to the averages in your age / friend group are fine too.
No credit debt. No drug/alc addictions.. Can run 20k+ without stopping. Care about my digital privacy. Never put so much as a scratch on a single vehicle in my life (including forklifts and non-road vehicles). Know how to sail. Couldn't care less about team sports.
Incremental training. I started with Couch-to-5K. Highly recommend. Once you complete that program, increment weekly distance by no more than 10% per week until you reach your goal.
I'm working on the same goal but I'm sidelined with ankle issues so I've been cycling like a madman instead. Hopefully I can restart my training plan this coming tuesday.