About dressing up.
Dressing up gives you social edge which allow you to move faster in work and other scenarios.
Dressing well also create attachment and fruitless mental stimulus.
Dressing bad has no reason other than lethargy.
Dressing similar saves the time and remove the space for the doubt.
You have enough clothes. Just need a jacket.
They way it helps in spiriutal growth is either letting go acceptance and the need of the women or keeping the mind clean.
It is not really important, I can buy a jacket and maybe a shirt and paint and shoes if they are there.