I don't know what to do with my life!

Why are there always so many things I want to do? (Why do I have to be so indecisive?!)

After sending CV and 'lettres de motivation' to about 25 different holiday resorts (mainly) around France, I've finally got at least 2 definite possibilities to choose between (one is a reception 'stage' with Eurogroup near the Chambery area, and the other is working as a tour guide/in the gift shop of some secluded historical Chateau thing in the Dordogne). Have phone interviews for both on thursday to test my level of spoken french. So far, definitely preferring the Chambery option (although it would be cool to work in a castle!)

But, also possiblity of applying to work on yachts along the south coast of France, working as a volunteer at an auberge de jeunesse in Mont St Michel, getting a work experience placement at a publishing company in Paris (they dont have availability this summer, but they are still interested). How the hell do I choose?!?

Also over the next few years I want to:
Study German one summer at a language school,
Do another teaching assistantship (in Germany this time)
Work as a courrier/holiday rep in a french campsite
Go on a world challenge/raleigh internaional/madventurer/quest expedition to South America
Do some kind of postgraduate Law training
Do some kind of postgraduate Translating and Interpreting training
Live in London
Get a real job!
Travel to Thailand and surrounding area
Travel to India
Travel to Canada and the USA
Dance competitive Latin & Ballroom
Learn Chinese and Russian

Hmmmmmmmmmmmm.......................

I know Im young and have all the time in the world blah blah blah and shouldnt be worrying so much, but most of the above needs to be done sooner rather than later, so how do I choose what to do (cant do all of it!) and how do I afford it???

*Confused and overwhelmed*