(Note that I'm defining 'making it' as 'being able to just about pay the mortgage eleven months out of twelve AND THAT'S NOT BAD)
Loved this bit of advice from the Department for Business, Innovation and Skills for parents whose kids have come home to roost:
"Yes, some people will make it as actors and scriptwriters, but many just waste away the years."
Full article here
Thing is, of course, sitting about on your arse all day is perfect training for career in writing scripts (less so for acting, sadly). Further useful skills you could learn in this valuable period:
1. Sighing heavily.
2. Looking things up on Wikipedia, getting distracted, finding yourself spending an entire afternoon on the history of Transformers.
3. Trying various condiment combinations for toast (peanut butter plus brown sauce = yes, cheese, marmite and sliced raw onion also = yes, but with repercussions).
4. Watching a lot of Lady Gaga videos, and starting to think she really might be a lot smarter than that Poker Face song initially suggested.
5. More sighing.
6. Buying stationery, until you have an entire shelf of A4 notebooks, all of which have only the first three pages written in, but which can't be thrown out, because there's also some AMAZING D&D maps scribbled in one, can't remember which.
7. Looking for spare change down the back of the sofa.