What should I do?

I am doing my ACCA level 2 and I have not got any job related to my studying field yet I am about to start working as a project support officer as from Monday. The salary is below the range of my qualifications. The job is more of a desperation job however I think I will have to work in the position for a long time as I have applied to nearly all companies in the country and still I didn't get the job in accounting. Any advice?

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