There’s usually more than one way to accomplish something. Ideally, you’ll want to have at least three methods open to you.
If fitness is your goal, for example, try not to rely on jogging alone. Also have a choice among swimming, weights, exercise machine and sport.
Varying your activities will “keep your body guessing” and make you fitter faster. It’s also great to be able to get up in the morning and ask “what one will I do today?”
If yoga is your thing, train regularly with more than one group. Self-employed? You’ll want at least three clients.
Not only does variety stop you getting bored, it also creates a buyer’s market. The providers of activities will have to compete against each other for your attention, which means you get the best possible deals.
A range of alternatives isn’t usually possible at the start. Let it evolve. Begin with a single activity, than add to that as opportunities arise.
Achievement – it’s a matter of choice.