Sophia Amoruso has been in her words, “A dropout, a nomad, a thief, a shitty student, and a lazy employee.” Then in 2006 she set up Nasty Gal Vintage, an eBay shop selling vintage clothes. Fast forward to 2014 and she’s the CEO of Nasty Gal a $100 million-plus business selling vintage and contemporary fashion online, without ever having to borrow a penny along the way (she couldn’t due to ruining her credit rating when she didn’t pay off a single purchase made on a Victoria’s Secret store card). Oh and she celebrated her 30th birthday this year. Impressive or what?

Sophia’s written a book, #GIRLBOSS, sharing the secrets of her amazing career journey so far (how on earth she found the time to write a book when she’s already got a pretty huge day job I have no idea). As you would expect it’s full of inspirational career advice and I really wish it had been around when I was a teenager. But hey, it wasn’t, so here are five pieces of wisdom from the Nasty Gal boss that it’s worth remembering whatever stage you’re at in your career.

Tip 1: Details matter

I like to think that part of the reason Nasty Gal has been successful is because my goals were never financial ones. I believed in what I was doing, and fortunately other people believed in it as well. I cared as much about the process as I did about the results. No decision was too small. Whether it was the word choice in a product description or the expression on a model’s face, I treated everything with the utmost care.

Tip 2: Ask for what you want

If you’re frustrated because you’re not getting what you want, stop for a second: Have you actually flat-out asked for it? If you haven’t, stop complaining. You can’t expect the world to read your mind. You have to put it out there, and sometimes putting it out there is as simple as just saying, “Hey, can I have that?”

Tip 3: Think positively

You get back what you put out, so you might as well think positively, focus on visualizing what you want instead of getting distracted by what you don’t want, and send the universe your good intentions so that it can send them right back.

Tip 4: Love yourself

You can’t convince someone else that you’re amazing and terrific if you don’t actually think you are. This isn’t the false confidence that comes from getting a bunch of “likes” on our Instagram selfies, but a deep-down unshakeable self-confidence that persists even when things aren’t going all that great.

Tip 5: Be open to opportunities

While I truly believe that you must have intentions to fulfill your dreams, I also think you have to leave room for the universe to have its way and play around a bit. Don’t get so focused on one particular opportunity that you’re blind to other ones that come up.

You can buy #GIRLBOSS here).

What’s the best piece of career advice you’ve been given? Do share below!