I have always enjoyed pursuing things that are challenging in a way that contributes positively to my personal well-being. For me, the most enjoyable activities demand commitment to continuously push myself mentally and physically. I have enjoyed a number of challenging sports related activities in my life. These have included competitive rugby, training programs in the gym, running far and swimming hard.
My current focus, outside of my day job and when I am not writing articles, is technical SCUBA diving (including leading expeditions) and mixed martial arts. These activities continue to offer endless opportunities for personal challenge, development and growth in so many ways. For me, this is what keeps life interesting and balanced.
If I measure myself in terms of how many competitions or medals I have won than I have not been particularly successful. If I measure myself by my own progress and personal development then I have been successful. However, if I measure myself by the respect and many friendships that I have earned along the way then I have been very successful and fortunate indeed.