Hey seawinde,
I have done finance modules in a London university and am in a lucky position to understand people who work for hedge funds and major banks. I asked something like your question. Responses will attempt to summarise. .
1. Get'some' eduion no need to overdo it, fundamental economics, mathematics, trading principles, (no need to go overboard with paying for pricey courses)
2. Practice, practice, exercise, lots of display time
3. Write, talk to firms, When you've established a track record. Tell them what you need... if your any good they will provide you a chance. .
Personally I have found trading for one self a whole lot more challenging and fulfilling. I talk to individuals who work for funds/banks and they're under pressure from their own masters. Work your butt off finding your personal style/method of trading you will never answer to a'master' again. Not that I am their yet!!
RS