I’m not trying to be mysterious, I just wasn’t sure my answer would be helpful to the op as I suspect she doesn’t want to spend as much time on it as I do. But I did say I’d come back so here we go:
It helps that I spent my teenage years going into town any Saturday I could. I never had much money but I’d happily spend all day trying things on: clothes I might be able to save up for, clothes I’d never be able to afford but loved anyway, clothes that made me laugh etc. I hesitate to use the word training as it wasn’t work, it was fun, but it definitely helped me get my eye in and I think that’s how I developed a strong instinct for what I like and don’t like. I’m not sure though how this can be replicated in an age of internet shopping.
To get ideas I watch what people are wearing all the time. On the bus, train or in the coffee shop, I play a game of who’s wearing the best outfit and then I try and figure out why I like it.
I don’t read as many magazines as I used to but, for an overview of what’s on the high street, I quite like Hello and Grazia’s fashion specials. I’ve yet to try any fashion apps.
I read costume history books and my Instagram feed is full of fashion historians and vintage. I don’t follow any influencers.
I buy mainly vintage and second hand. I mostly like 1940s-1970s stuff which is becoming very hard to find so if I see something I like and that fits, I buy it if I can afford to. Then I mix it with contemporary pieces. I estimate that I’ve bought about a dozen new things this year, from Uniqlo, H&M, M&S, Margaret Howell and Grensons.
What I don’t do is worry about what’s supposed to suit my body shape. I used to but I developed a very negative attitude towards my perfectly normal thighs and upper arms. It was getting me down so I stopped. As I said at the start, I have a strong sense of what I like so I trust that. If I make a mistake, it’s not the end of the world.
So there you are. I did say it probly wouldn’t be helpful 🤷♂️
Editing as I forgot to say, I only bother with the things I enjoy. I couldn’t care less about handbags, makeup or beauty routines. I’m not very interested in shoes either although that’s a mistake as shoes and boots can change an outfit. But if I don’t find it fun, I’m not interested,