I'm not full time yet but this might help anyhow. Im only 22 so still a youg'un and still at University (albeight in my last semester!). The way I see myself becoming full time is by bucking the trend of most graduates and not going for a regular full time job.
I've worked full time while studying and the experience I've had working under someone else has left me kind of jaded so to make money what did I do? I started my own business! Now I work under my own steam, when I want, and with whomever I want while I study. I haven't been able to sit down and trade since this semester began so the next 11 weeks or so will be no trading at all which sucks but during my holidays I traded furiously every night (trading the YM takes place during my night time) keeping a journal (Thanks Brown

) and learning as much as possible.
Once I graduate I'll continue working under my own business and diverting excess funds into my trading account. I will end up trading 3 days a week during my night time and then sleeping until around 1-2pm before waking up and running my business from home. Eventually once I work out all the kinks in my system and can successfully make 20 YM points a day per contract on a consistent basis then I'll spend more and more time trading until eventually it becomes full time.
It'll be pretty hard for a long time but it's a price worth paying I think. If I can get a job in a prop trading firm I'd do that though!