Therefore I documented the process I went through to find perfect fit and the size I bought depending on the shop.
Firstly I tried on these jeans from ZARA in a size 6, and I normally fit a size 6 but these jeans consisted of quite a loose and baggy waist. However I fell in love with them and they did fit nicely on the actual leg, so I decided to go for them and just buy a belt.
I then got a another top from ZARA that had a mesh front therefore your bra was exposed, I tried on two sizes an 8 and a 6, as I didn't want the neck and sleeves to be too tight, as I'm all for comfort haha. However the size 6 was a good size, even though I thought it would be quite tight due to me comparing it to other sizes in different shops and different styles of clothing in ZARA itself.
Pictures all mine feat my sisters room.
Therefore guys it's literally guess work, so I guess you just have to have an eye for what suits your body and style instead of going off the size on the hanger.