Scones! There was a thread on here a while back full of tips which I've yet to try even though I bought in proper butter especially. They're edible they just don't rise very well
For those with similar difficulty:
https://www.mumsnet.com/Talk/_chat/3906170-Are-some-people-genetically-unable-to-bake-scones-Its-the-only-answer
Poached eggs - I've tried ALL the tricks can't make em to save my life!
In terms of reproducing others signature dishes - my mums Scotch broth - again, follow EVERYTHING she says it still doesn't taste QUITE the same I'm honestly beginning to believe I need her pot to cook it in - which she won't part with even as a loan 
My best friend makes fabulous spaghetti aglio e olio which again I've never been able to make quite as well
Yorkshire’s and pancakes are both about getting the fat smoking (literally) hot before you pour in the mixture I'd agree with that I used to struggle with Yorkies until I learned this.
Mashed potato ok no offence meant but how on EARTH can you get mash wrong?!
Rice I struggle with, sometimes ok sometimes either sloppy or dry
I tend to be a good cook and baker, but I suck at presentation yea same here, I can't do buttercream anything and I'm no good at delicate fancy stuff. I can do basic writing and rosettes.
When I read ‘soft in the middle’ my brain filled in ‘when the rest of my life is so hard’ ah a fellow 80's music fan great
My tip for roasties is parboil and rough em up & salt before roasting. At one point I had a metal colander which was PERFECT for roughing them up and I've sadly been unable to replace.