Let me get this right. If you wear your clothes 52 times a year that means you wear everything once a week. If every outfit is made out of 3 items that means you shouldn't own more than 21 pieces of clothing (not counting shoes, accessories, bags, hats, scarves and so on) and only if every outfit really is completely unique. It might be possible, but it would be so boring! Dressing like this would be almost like wearing a uniform, even most men I know own more suits and shirts than that. The fact that we're all meeting on this forum means we're all interested in fashion which means we like experimenting with clothes, which would be a very limited endeavor with only 21 pieces of clothing. Would you want to eat the same things all the time every 7 days? Would you want to travel to only 7 places your whole life, see 7 movies over and over, meet 7 people and read 7 books?
If you completely change your wardrobe all the time or only wear a few favorite things over and over that means you haven't quite found your style, which is fine and common at your age. And even if you do, that style will change, so why limit yourself so drastically?
Before you start your no-shopping adventure, you might want to purge your wardrobe one more time. I know you've smartly been adding mostly basics that will serve you well. Getting rid of things you don't like or don't wear or both will give you the chance to find out what doesn't work and what's missing. If you find out you love everything, you should wear everything. Otherwise your bad conscience will make you feel miserable. BTW, I've read that the average life of a piece of clothing is 7 times. So if you wear yours at least 25 times you're way better than the average woman.
(Sorry for the long post...)
True, I am here for my love of fashion. DBF does own more suits than what I expect myself to minimize to.
I don't think I'll go drastically down to just 21 pieces, due to sheer boredom and that I like clothes too much. haha.
But we also do buy on the premise of quality. Our items should last a year with ease. But they don't. Or we get tired of them way before their life span should end. So even though I buy saying I love quality and timeless styles, I barely keep anything that long. That is the biggest aspect of my shopping habits that I want to change.
I had completely changed my wardrobe completely over the years in the aspect of trying to find my style. It had always been determined by others, whether it be my peers of the time or by social media. Now that I'm settling into my love for skirts, I feel I'm getting into what I find comfortable and what I find stylish (enough).
I've been debating if I want to purge my wardrobe one more time, and I did take a long look into my closet yesterday. I was re-arranging things, making sure they all hung carefully in the closet. Although a bit crowded due to space and the volume of clothing I own, it all fits in there. I couldn't think of one thing I wanted to return, not one thing I wanted to let go of just yet.
The goal is to wear everything. To stop buying and appreciate what I own. To figure out myself and my style, so I can take note for 2019 when I am allowed to buy again.
Although yes, I can technically wear the 7 same outfits every week for a year, and I do know of people who do that. But they do not care for fashion, they just care that they look work appropriate and are out the door.
Since I care for fashion, perhaps I can re-evaluate my numbers to be similar to DBF's. He has 30 unique suits. Whatever his rotation is, somehow works, since he always has something to wear while a set is at the dry cleaners. Then everything then is worn about 12 times a year, above the average of the life span you read of. But, suits seem to last a lot longer than women's clothing.
phew. that's a lot. I don't know why I get so caught up in the number aspect of it all. It's just my wardrobe!
I do have some sort of a uniform though: blouse, skirt, flats.
I suppose I may have found my outfit formula, I have yet to find the amounts of each I can be happy with.
My grand total of clothing at the moment is 87 pieces (tops, bottoms, dresses, coats).
ETA: Long posts welcome! I like the discussion and thoughts!
But I'll be able to get other colors that way, I suppose.
not sure why, I think I've maintained them just as well as the others. But it is a different leather compared to everything in my collection. 
