what am I trying to show in my personal statement- Oxbridge? Physics/Engineering

Just demonstration of your interest in the subject and some indication you understand the scope of it at degree level. They do not really care much to hear about your non-relevant extracurricular activities (e.g. that you play the flute at grade 8 level while applying to physics). Generally Oxford and Cambridge do not put a huge amount of weight on personal statements, especially for STEM subjects, in large part because they've stated that admissions tutors have no real way to know if it is the student's original work and they usually don't give them that much information.

Note that other universities may well put much more emphasis on the PS however, so you should still put effort into it. But if it's acceptable for most other unis it will likely be more than acceptable for Oxford and Cambridge. Also note that other unis may be more interested in those non-related/non-academic extracurricular activities, so it's still worth writing about them, but I would not suggest spending more than 20% of your PS on that. For most unis your PS should be focused primarily on the subject you are intending to study, discussing your interests in that subject and why you are hoping to study it, where possible "showing" rather than "telling" about your interest (e.g. not just saying "I am interested in X..." but "I read about A in book B which led me to concept Y which allowed me to explore my interest in X").

thanks @artful_lounger
i wrote this in my statement and a teacher told me to explain WHY i found it interesting...but I have no idea how to explain WHY i found it interesting...like i just did, ya know?

what are Oxbridge looking for in my personal statement for Physics/Engineering

I think I recall you asking this before; as I said last time you need to show the reasoning behind your interest but showing essentially the genesis of that interest and what you have done to explore. Hence, rather than just saying "I found X interesting", you expand that by discussing where you found out about it, what you did to explore that, and how that exploration developed your interest (and then link to the degree).

The official (subject agnostic) advice is here.

You should aim to explain, and demonstrate, your passion / enjoyment / activities in the areas of Engineering / Physics, and Mathematics.

However, please don't get overly stressed about your PS. It must not compromise your PAT preparation. Good luck.

Just demonstration of your interest in the subject and some indication you understand the scope of it at degree level. They do not really care much to hear about your non-relevant extracurricular activities (e.g. that you play the flute at grade 8 level while applying to physics).

what are Oxbridge looking for in my personal statement for Physics/Engineering

I disagree - the ability to schedule your acadmeic work around the level of practice required to play at this level shows great organisational skills and team work if you play in an orchestra - Oxbridge do look at more than the academics.

Eh im not so sure about this, I've been told numerous times by admissions tutors that they generally don't care about this sorta stuff - especially the teamwork aspect. - Organisational skills might be relevant to demonstrate you can cope with the workload.

I disagree - the ability to schedule your acadmeic work around the level of practice required to play at this level shows great organisational skills and team work if you play in an orchestra - Oxbridge do look at more than the academics.

Tutors at Oxford are only interested in your academic ability and potential.

Engineers [and most scientists] work in teams - you need that skill or you won't be successful ...

I take your point, and the PS is for more than one University. However, this is what the official guidance says (see "What are Oxford tutors looking for?"):

My point and this point are not mutually exclusive. For better or for worse, I have been told by at least 20 different people working in Oxbridge admissions that they do not care about these sorts of transferable skills outside of courses like Medicine.

The tutors I know disagree - I've taught several in post now.

Fair enough, I'm sure 1 or 2 sentences on the topic wouldn't hurt but the brunt of the personal statement should be focused on academic pursuits and certainly the omission of extra-curriculars wouldn't outwardly hurt an Oxbridge applicaton.

I disagree - the ability to schedule your acadmeic work around the level of practice required to play at this level shows great organisational skills and team work if you play in an orchestra - Oxbridge do look at more than the academics.

The PS is NOT just for Oxbridge though is it? You need to write it to fit more than one uni!