Manifest your ambitions to become your reality
Making goals which are easy to obtain are not motivating because not much effort is exerted and you will learn not much during the process.
Making goals which are extremely difficult to reach will not only lose your incentive, rather will make you want to give up earlier even before you reach your goal.
Both of the above-mentioned ways to set your goals are useless and will be a waste of your precious time. Set goals which are neither too hard to achieve nor too easy.
Make goals which are in between easy and hard which would be a happy medium.
This way your goal will not be too close to reach them nor too far, so at some point you will be able to achieve those goals.