The importance of perspective cannot be over-exaggerated.

Setting goals for the future can be very exhilarating. It is easy to get enthusiastic during the planning but then you might lose interest in the execution. 

Setting goals for the future can also be daunting. You might never actually begin because you end up worrying needlessly about all the things that can go wrong.

Cultivating the right mind-set is very important. Appreciate past successes but don’t get too over-confident. Think of past failures as invaluable learning experiences.
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Set your goals starting as if you have already arrived. Or, to put it into Charles Haddon Spurgeon's (1834-92) much better words: ‘Begin as you mean to go on, and go on as you began’.