The issue you will come up against is capitalisation. Unless you can raise a decent amount of funds, you won't be able to support yourself consistently through trading (unless you are prepared for considerable risk and potential heartache). If you can show you are consistent and profitable with a small account, you could apply to a trading arcade after you leave uni (e.g. Schneider, Futex). That's probably the route which will most quickly lead to riches, if indeed you are a good trader. However, by then, maybe the banks will have started hiring again, but typically they are not looking for outright prop trading graduates.