Learn about yourself

It's easy nowadays to find out about other people's practice methods and follow routines people have come up with to obtain results, but with such a wealth of information at our fingertips, how do we know what will work for us? We certainly don't have the luxury of spending large amounts of time trying everything out. The answer is to learn about yourself, because everybody handles things differently, techniques that worked for other people won't necessarily work for you and techniques that didn't work for others might be just what you're looking for.

There is a very useful, practical and scientific method of personality classification called the Myers Briggs Type Indicator (known as MBTI). This system was created during World War II to determine which wartime job a person should have based on their personality, it states that there are 16 different personality types, each with their own strengths and weaknesses and some far more common than others. This system is still in widespread use today within the corporate world.
http://en.wikipedia.org/wiki/Myers-Briggs_Type_Indicator

To determine your type, take this simple online test:
http://www.humanmetrics.com/cgi-win/jtypes2.asp

Once you know your type, take note of your strengths and weaknesses and think about how you can apply these to guitar practice, if you're an extrovert, maybe you should have a teacher or practise with other people, if you're an introvert, it's probably better to practise alone etc.