@Higgldy someone better tell that to Claudia Winkleman, who wears kohl all the time (probably not on her day off). Plus skinnies- I absolutely love her styling on the Traitors, but she's in skinnies and thick leggings all day long, plus the odd pair of bootcut/flares. No baggy jeans for Claudia. Admittedly all in black.
In fact, Claudia also wears heels as well as chunky biker boots. Which S and B told us were out of fashion as well...
My approach is different to those on here. I think not what's in fashion, but what's really not in fashion. So, right now, I wouldn't go out in a pale pair of skinny jeans looking like parsnip legs, with a floaty top. I would go out in a pair of black skinnies with a suitable chunky jumper. I bypass all unflattering fashions, and hence get compliments a lot on my style, so I avoid things that don't suit my shape, so all crop tops, crop jumpers, baggy/mum jeans (no waist), all completely unstructured clothing and so on.
I think knowing what to avoid helps, and then helps you pull out the nice things you already own (like I have several wool coats that inexplicably have 'come back into fashion' but I still wore them anyway) and add a couple of more current things.
I look at the students at my work to see overall trends, but I don't try to look like them in any sense, I would not suit baggy jeans or tight sports leggings which are the current two silhouettes.