Insecurity is either danger, i.e., lack of objective security (in a physical situation or a computer system), or an emotion of general unease or nervousness without obvious cause or purpose (see also anxiety).
A person who is insecure lacks confidence in their own value and capability. This is not to be confused with being humble, which involves recognising one's failings but still maintaining a healthy dose of self-confidence. Insecurity is not an objective evaluation of one's ability but an emotional interpretation, as two people with the same capabilities may have entirely different levels of insecurity.
Insecurity may cause shyness and social withdrawal, or alternatively it may encourage compensatory behaviours such as arrogance, aggression, or bullying, a principle enshrined in the phrase "all bullies are cowards" (this saying is in fact fallacious, as some bullies are not cowards, see psychopath). Many people suffer a period of insecurity during puberty, which gives rise to a lot of the stereotypical behaviours of adolescents.
If you ever have experienced feelings of insecurity, jealousy and distrust in your relationship, you are certainly not alone.
In the contrary, you may discover that your partner was not aware of something that he or she was doing that hurt you and you may be able to rectify the situation and the relationship could improve.
If you are having insecurity in your relationship, you should stop to examine your relationship at both an individual and a relationship level.
This can foster doubt in an insecure person's ability to gain recognition for their successes, and can make them doubt their ability to achieve success.
This can lead others to guess what is going on until the passivity of the insecure person leads to an over-reaction by the others, resulting in conflict or rejection.
Explain each item on the collage, and explain that they have helped you overcome some of your personal insecurity by giving accurate and honest feedback on reasons why you should feel secure and good about yourself.