I don’t know if your question is very useful to you OP. What you might be wanting to look at is how this fits with your overall income, your fixed costs, your future planning and other areas of non essential spending and how you prioritise them.
As PP have said, some people have a uniform for work or work from home , or don’t need smart clothes. Like you, I’m in a professional role where I need to look smart. I now (unlike when I was in my 20s) wear clothes at work which I also wear casually, with jeans (jumpers, shirts) and I wear the trousers I wear to work when I go out in the evening with different accessories. I have very little interest in tech or devices- except what I need for work. My phone is ancient but I have no interest in phones. I don’t have my nails done, I don’t have facials, I don’t have massages. I don’t have Botox. I dislike most things that make me sit down for too long. I would rather go for a walk with friends than go for a meal. I don’t have a car.
The point I’m making is that some on mumsnet will have a few children in paid childcare, some might have huge families with lots of weddings, celebrations and gifts. Some might have to, or want to travel several times a year. Some might spend nothing on fashion in a year, but a lot on their sport or their dog or a horse!
I’ve spent a couple of thousand on clothes a year and I’ve spend nothing at all the next year. If you are wearing all your clothes and they fill a gap in your wardrobe, or they are replacement boots/ coats etc and you can afford it, it seems fine. It sounds like you can afford it. You could track how much you wear your clothes with something like Stylebook, so you are aware of everything you have and everything you wear so you don’t make too many costly mistakes.