S.M.A.R.T. Goals - How to set successful goals:
"S.M.A.R.T. Goals to Make a Change:
A goal should provide guidance and direction. Goals like ‘lose weight’, ‘eat better’, or ‘have less stress’ are far too vague and unspecific to help very much in making change. Use the S.M.A.R.T. criteria to help put more detail into your goal. Spending some time creating effective goals will be a huge help later on."