Perhaps the best way to surface your own issues is to look at your friends and family and ask yourself, what are the things about those individuals that make you feel anger, or what do they do that make you lose control of yourself and your emotions? If you would just take some time to reflect upon this, you may find that often the very things that you hate in other people are the very traits that you also carry with you! Does their constant procrastination drive you crazy? Perhaps you procrastinate also and are really angry with yourself. Use these reflections to improve yourself instead of trying to "fix" the other person.
As a personal example, I have always found that people who appear to lack backbone, and are too overly accommodating people seem to lose my respect. In fact, in some cases when people are very timid, it made me actually feel a bit of hostility towards them for not standing up for themselves. I realized later in life that I used to also have those same traits and as a result, I was really getting angry at the reflection of myself that I was seeing in others.