I struggle with what to wear to work every day.

The clothing style I usually like isn't suitable for work, so I'm debating if I should buy some clothes.

Now that I'm actually about to buy something, it feels like a waste of money, but even when I look at them, they seem plain or not pretty enough, so I have nothing to wear...

I want to buy some clothes that are easy to wear with anything. Do you have any shopping mall recommendations?