What was the hardest personal goal you’ve set for yourself?

When I was fitter I used to swim. I’m not fast but have stamina so I gradually built up the distance I could swim. My preferred goal was breast stroke.
I found out that a mile was about 40 lengths of the pool so I set a goal to see if I could do it. I slowly built up the numbers, I was limited by the time it was taking me to finish it but after about two or three months I managed it. I have to say I never swam that distance again!

