Its a great first step to gain self-trust and start a timid career. There is always an overload of work with minimum supervision over repetitive tasks week after week.
I learned so much about Excel functions and the retail industry; it's strategies and goals. The coworkers relationship isn't easy mostly because of a low moral developed through a constant undervalued performance.
The hardest part of the job is maintaining all records up-to-date because decisions are never final and might change in any moment impacting the already completed work.
The most enjoyable part is interacting with suppliers, planning inventory levels to avoid out of stocks and overstocks, but the most fun was taking part in the negotiations with suppliers