There is no reason why you should not be able to complete the training, but it will be no easier for you than it is for anyone transitioning from another profession. Where you might have an advantage (if you are still in the Navy) is being able to do some of your training as resettlement, and thus get it paid for by the MoD.
Getting a job is the difficult bit, as a perusal of these forums will testify!
Scroggs