Look up the definition of a self-made woman and you might find a photo of Prene founder Tammy Green. After dropping out of uni, she started an eight-figure business in her parents' Melbourne garage, but for years she had to hide her identity – even her name – just to be taken seriously. "Being a young woman in the industry, no one thought Prene was my business," she tells 9honey.

READ MORE: Sandy made $8 million selling item every Aussie already owns "People would laugh at me, they would laugh in my face. They would not give me the time of day. They would belittle me.

" Important people would call and ask to speak to her boss, not realising the 20-year-old that answered the phone was the boss. No one believed Green could possibly be an entrepreneur and aspiring business woman, so she had to hide who she was. "I didn't want my picture out there.

I wouldn't talk on the phone anymore. I would sign off on emails with a fake name," she reveals. It was frustrating, but it seemed like the only option if she wanted her business to succeed.

And god, did she want it to succeed. Prene began as a side-hustle, one of many Green ran out of her childhood bedroom while failing a business degree at university. At 20, she had the drive for business – she sold Justin Bieber t-shirts on eBay, rented out dresses to friends – but not the "mathematical brain" for the degree.

Green spent more time admiring women's handbags on the tram to and from classes than reflecting on her coursework. Tha.