How Do We Create Our Identity?

http://www.findyourtribe.co.uk is a website where you answer questions about yourself and any interests you have, and the website will place you under a social group or "tribe". I found this website intersting as the questions that it asked you are Britishly orientated, asking for example if you listen or watch the BBC, asking what british ethnic group you are from, asking your favourite celebrity (all that are stated are British), and cycles through typical British culture and hobbies revolving the internet, education, sport, music and tv, going out, drugs, magazines to name a few. I believe this website has British beliefs and politics to shape a British identity, and help me to understand sub cultures within Britishness to which we identify with and idolise to build our own individuality and unique qualities. I visited the website twice and got mosher the first time and townie the second.

So how do we personalise our humanity? The following are a few aspects that I believe we build our identity through:
-Status/Class
-Culture
-Childhood
-Friends/Family
-Life Experiences
-Fashion (clothes, hair etc)
-Ethnicity and their core values and cultures
-Technology (Mobiles, iPod, PC, video games)
-Assets (Cars, Jewellery, House)
-Media Interests
-Books/Magazines
-Social scenes and town/village you're from
-Colours
-Language/Lingo/Accents
-Religion
-Sexual Orientation
-Education
-Money/Wealth
-Shops

It is worth considering how the media communicate these values, and merge them into collective identity. For example, this can revolve around music genres and the lifestyles individuals lead within them and who others draw inspiration to within this genre, what values do they convey that influence others to be alike?
To put a spin on Britishness, what values does the media target to restore national pride, disgust, antagonism or ambivalence? And thinking about how a protagonist being either an insider or outsider of these communities react to such representations.