Now obviously none of us here at Her.ie look at day over nineteen, right? RIGHT? But as we get a little bit older (just a little), we're also getting a little bit wiser - and what's the point in amassing wisdom if you don't share it? So, here are some of the important lessons we think every women should know before they hit the big 3-0.

1. When to step away from the tweezers.

2. You cannot know what challenges, difficulties and burdens that other people are facing, which is an excellent reason to be as nice as possible.

3. Nobody – and we mean NOBODY – wants to hear about your dreams. Or your horoscope. Or your baby’s bowel movements.

4. You can always tell when a woman is with the wrong man, because she has so much to say about the fact that nothing's happening.

5. Smoking, drugs, eating junk food, not brushing your teeth and gossiping about people aren’t things you can do for long before they come back to bite you in the ass.

6. “Every last one of us can do better than give up.” – Cheryl Strayed.

7. Once you stop judging your happiness by other people’s lives, you’ll instantly be more at peace with what you’ve got.

8. How to cook a great meal, check the oil in your car, back-up your computer and write a great lie-free CV.

9. Not to get all John Lithgow in Footloose on you, but there are age-limits on appropriate dancing. Dropping it like it’s hot, feeling up your best female friend and dancing like a Pussycat Doll at a club is understandable when you’re 17 – after that it’s a bit sad.

10. “No one can make you feel inferior without your consent.” - Eleanor Roosevelt

11. When everything’s going hideously wrong and you’re about to lose it, stop and ask yourself if this moment will matter a year from now. If not, calm down and move on.

12. You will nearly always regret getting a post-break-up haircut.

13. How to turn last night’s smeared make-up into a believably smoky day-look.

14. Stop trying to make “Sorry…BUT” happen. It’s not going to happen.

15. “There are no heartbreaks that chocolate can’t fix... Okay, there are some heartbreaks that chocolate can’t fix, but that’s what rainboots are for, because rain will wash away everything if you let it.” – Sarah Kay.

16. The names, full titles & policies of all the Ministers and Ministers of State.

17. A great tailor, cobbler and hairdresser.

18. What gets you off in bed. We recommend lots of research. Homework has never been this much fun!

19. Studies have shown that men ask for more money at work than women do. Start demanding that you get paid what you’re worth.

20. Blondes don’t have more fun. Women who don’t spend excessive amounts of time and money worrying about their roots have more fun.

21. To really understand the world, you’re going to have to bite the bullet and read the Business Section of the newspaper.

22. “Above all, be the heroine of your life, not the victim.” - Nora Ephron

23. Good mates tell you that your misfortunes are never your fault. Great mates tell you that you messed up, how badly, and that they love you anyway. Friendship isn’t about pretending you’re both perfect, it’s about helping each-other be the best possible version of yourselves.

24. Textspeak makes you seem like a thirteen year old girl. And not a smart one.

25. Authority figures aren’t always right. Whether it’s your parents, your boss, your lecturers – sometimes they don’t know what they’re talking about. The difference between good leaders and bad leaders is that good leaders welcome your questions, so don’t be afraid to speak up.

26. Fashion is a fickle mistress, and things that are in style may not suit you (see: Harem pants. For everyone.)

27. “Whatever women must do they must do twice as well as men to be thought half as good. Luckily, this is not difficult” - Charlotte Whitton

28. You’re the only one who notices your bad hair days.

29. Remember: No-one else has it all figured out either. (No, not even us) But…

30. “Rivers know this: there is no hurry. We shall get there some day.” – Winnie the Pooh