My million dollar fitness idea was to start day one reeaall easy: 1 push up, 1 sit up, 1s of plank.
Each day, add one. After a week you're doing 7 push ups, 7 sit ups, 7s plank.
A month, 30 of each.
After a year, you can do over 300 of each, and more than 6 minutes of plank. That's the idea anyway. I'm on 63 of each right now. I'm not sure how long I can keep going for...
Something like that worked for Milo of Croton. Any idea which of the three might be the breaking point, and what you'll do after that? I began doing pushups about two months ago, starting with three sets of 12, much easier than 20 at once. I try to add one each time, about three times a week, and am up to three sets of 25. I am curious to see how far I can go, but might also switch to something that won't take so much time.