Spend within your means. Fashion wise, you don’t need to buy expensive stuff to look good. Research the look and the material that’s “in” and go do some mix and match from more affordable sources.
About ten years ago I used to ride a bus to work and every morning there was this probably 16 or 17 year old female teen who always looked good wearing this eclectic set of clothes.
They didn’t look expensive but the way she combined them was really chic and most befitting of her age.
If she was the one who put them together then she was really gifted.