Does anybody have any advice?
Any kind of colour blindness will rule you out of most if not all safety critical roles, ie driver, guard, platforms, shunted etc
NX
Depends if you can pass the colour blind test. Im not suggesting cheating but ask an optician to do a colour blindness test to see if the blue/purple blindness would be severe enough to fail. Standards are stricter for drivers than many other grades.
Always worth getting these kind of health concerns assessed by a professional than assuming you are automatically ruled out.
"I wanna be a train driver coz they earn lots of money"
NX
That's why I became a signaller!
Signalling does sound interesting...
With the ongoing move towards the ROC (Regional Operating Centres) and away from old (steam era) signal boxes and 1970/80s Power Signal Boxes signalling is not the stablest place to be at the moment.
Most signallers seem to be in a constant state of limbo on when their boxes will be closing and where they will be going.