The film 'Clueless' is not ironic. It is not a template to live your life by, and for gods sake, stop colouring those shoes in with permanent marker so that they match 'Cher's'.
That boy who sits behind you in history and drapes toilet tissue over the back of your chair before announcing to the class that you appear to have mislaid the contents of your bra will ask you in out in a couple of years, and you will answer by lobbing a glass of Baileys over his head.
You are an absolute zero in school now, but within a year or so you will be very popular at Sixth Form College. And nice with it as well.
You won't be this skinny forever. In fact, within 15 years you will be twice the size you are now. Stop moaning about those skinny legs and enjoy it. But please eat a bit more veg, you are looking a little pale.
Stop lying about losing your virginity. It isn't big or clever. But in a couple of years you will meet a lovely man and lose it with him in the most lovely, delicate and gentle way.
Beware of that sales guy when you are 19. Even though you will ignore all sense and still do it, don't move in with him. It will be the most destructive relationship of your life and for years will haunt you.
The love of your life isn't just round a corner. You will find him in a way that you can't even contemplate now, but when you do.. wow. He won't be Brad Pitt, but he is lovely. So lovely that you will cry whenever you think of how lovely he is. And he will be the one.
Stop imagining that you will get married and have babies by 25. At 30, those things still won't have happened yet, although you will by then start to know when they will happen.
Live on your own, and get to know YOU. Be comfortable with who you are, and admit that you don't know it all.
Stop worrying about your French and Music GCSEs, although for gods sake please don't sing that bloody Mariah Carey song for the End of Year show. You will be reminded of it forever, it will be so awful. And despite what your teachers say, you will pass both subjects very well in your exams.
When you are 23 and living in your first flat alone, PLEASE pays your bills. Your credit rating lasts a long time and it will be the bane of your life in a few years time. Those dresses and shoes are NOT worth it.
You will do and see so many things that you cannot comprehend just yet. Your life is not going to follow the template that your mum and dad sort of want it to. But it will work out fine, and you will be so much stronger as a result. And ultimately you are a nice, decent, friendly and bright person. (even if I do say so myself)