If you have a real passion for fashion then a job in retail could be perfect for you, it’s a great job that can earn you plenty of commission if you work hard and know your stuff about the fashion industry.
So where do you start, well a lot of high end fashion outlets will be looking to recruit staff that have some qualifications and experience in the world of fashion, they will also be looking for someone with a great sense of style and lots of confidence so the best way to build up to this is to start a 
course in fashion design. Whilst you are studying it would be advisable to get a part time job in a clothes store, ideally a department store or higher end high street chain to give you a good start on your CV.
When you have qualified and you apply for your dream job ensure you have done plenty of research about the brand and know lots about current and up and coming fashion trends that you may be asked about, above all be confident and smile.