There's a lot of pressure these days to stand out. If it's true, then there must be a lot of people who go shopping very frequently!
If a person is always going shopping and can't control him or herself, we can say he or she is a shopaholic. A shopaholic is someone who has an addiction to shopping, always buying things, even when they don't need it. This person is a "compulsive" shopper (compulsive= obsessive , uncontrollable).
Someone who can't stop drinking alcohol is known as an "alcoholic." Someone who can't stop shopping is known as a "shopaholic". Notice the similarity?
Do you also feel pressure to always wear something new? Do you know anyone who is a shopaholic?