Is there any prospect for secretarial work?

There is no prospect for a simple clerk to develop in the civil service, but if you want to start your own business or switch to other jobs in the future, you can start from a clerk, because clerical work is a very general job, besides serving tea and sending water to sort out information, you have to treat people, from personnel to job assignment, so when you don't know what suits you for the time being, clerical work is a good start plan!