Sixth Form clothes stress

I've just gone into year 12, meaning we can wear our own clothes as long as they are 'smart' (mainly no hoodies, leggings or trainers). For the first two weeks i was stressing so much, i was like 'i own no clothes!! i have nothing to wear!!' but recently i'm a lot less bothered, waking up at 8 and just chucking on whatever i can find (YOLO).
Most of the clothes i buy now are items i can wear for sixth form AND at weekends etc because i'm a bit poor and are things i can wear with different items i already own to avoid repeating exactly the same outfit.
I mainly wear skater skirts with a blouse/shirt and a cardigan or blazer on top along with my usual coat and either loafer style pumps or brogues.
1.Is a grey 'boyfriend' blazer from river island. i love this simply because it goes with everything and its got a nice texture to it which is almost jumper material, making it smart but casual so great for sixth form.
2.Is a plain white blouse from river island. At £20 i thought i should invest because its great for layering under jumpers and cardigans or if i'm wearing a colourful skirt and cardigan, its nice to not make it too bright.
3. and 4. are the same jumper from H and M. I didn't take these pictures, i just took them from google but they were the best for showing the colour and style. I have two of these in a bright yellow (like in the picture) and a bright green (i couldn't find it in green so used the purple to show it). they cost £7.99 which i think is so good for the quality. As its getting colder i think i will be wearing them more and more at school and they're perfect for adding colour to a dull outfit.

 

Sorry these pictures aren't the best but i wanted to add a new post to my existing one basically saying i've no idea what i'm doing haha. I will be thinking of ideas for posts (better than this one).