I don't own any actual designer clothes. I own a few "expensive" pieces from contemporary designers or diffusion lines (T by Alexander Wang, D&G, étoile by Isabel marant, etc.).
Fashion is important to me, that's why I also make sacrifices in order to purchase lovely clothes that aren't exactly in my budget range. I'm a full time univerity student, come from a poor family, live on my own and and work as a tutor which is luckily a quite well paid job here (I make 45$ an hour) on weekends. Most of my money goes straight to rent, insurance and treatment expenses. I usually have around 500$ left to spend every month and instead of buying food I'll spend the money on clothes. I literally spend no money at all on food. I eat four slices of toast bread with some cold meat for lunch every day which costs me about 3$ a week
I never buy anything to drink, I only drink tap water and I only buy stuff like rice, cereals and chocolate when it's marked down at the cheapest super market. Plus, I don't really have any leisure activities that cost anything and don't go out on weekends, don't have a car, etc. It's ridiculous I know, but that's how I decided to live until I have a full time job and make more money.
In the mean time I keep making wish lists of all the beautiful things I want to buy and do and keep looking at the list as a motivation to get me through this time, because I know some day I will make enough money to be able to afford all of it