To ensure your personal goal has meaning and will work check that it passes the SMART test.

S- specific/simple ensure your goal is clearly understood and defined
M -measurable able to monitor how your goal is progressing 
A - achievable believe your goals are attainable
R - realistic can you do it? Is the goal set for really what you want achieve?
T- timed set a time scale to achieve your goal by

The SMART technique has been generally recognised as an effective format to write clear structured goals.