Question on Personal Statement; please help and answer!

I agree with what has been posted about giving the admissions tutors a break by putting lines in between. However, like someone else has also said, don't feel you HAVE to do it; if you really can't cut any more, then leave it. Seeing a PS that isn't a chunk of text is on first impressions, more pleasing, but at the end of the day, the content is what matters.
I'd actually suggest structuring like so:

--Blah blah blah qwertyuiopasdfghjklzxxcvm
qwertyuiopasdfghjklzxcvbnmqwertyuiopasf
--Blah blah blah qwertyuiopasdfghjklzxxcvm
qwertyuiopasdfghjklzxcvbnmqwertyuiopasf

This was approved by the careers adviser at my school.
It signals a break and it means you don't have to sacrifice any lines! You'll need spare space for the dashes though.

Oh god, now I really don't know how to structure it.

You don't need to. The UCAS form has a maximum number of lines which you're allowed to use - even if you're under the 4000 character limit, you can be over the line limit and then you'll have to cut out some words.

If you think every word in your PS is crucial, ditch the blank lines (what are they telling the admissions tutor about you?! Nothing!) and put your full statement in.

If the tutors can't read it clearly, they can copy it into word - lots of them export them to format before reading anyway.

Everybody I know didn't leave a line, and they all got offers from the unis they applied to! However it's good if you can end a paragraph not at the end of a line:

Eg.


xxxxxxxxxxxxxxxxxxxxxxx
bbbbbbbbbbbbbbbbbbbbbbbbbbbb

rather than

xxxxxxxxxxxxxxxxxxxxxxxx
bbbbbbbbbbbbbbbbbbbbb

as then it's clear that it's a new paragraph.

But it's all about first impressions, like the mod was saying it would be such a welcome break from all of those walls of text that you're instantly 1+up on everyone else, the context of your PS will probably be viewed just that bit more positive for doing so. And I highly doubt that anyone can't get rid of a few lines to do so, most are long stringy sentences like 'Furthermore, one must conclude from their substantial...'

I just can't imagine, though, that the admissions tutors are fickle enough so as to read Personal Statements with a finger hovering over the rejection button, waiting for those that don't look very nice or appealing to read or whatever, so that they can slam it down.

Tbh I wouldn't want to go to a uni where they picked people based on whether they'd put blank lines in or not.

Tbh I wouldn't want to go to a uni where they picked people based on whether they'd put blank lines in or not.

You're totally missing the point.

Admissions tutors are human, humans get pissed off when they have to read huge blocks of unbroken text, especially if they have to do it a few hundred times. A pissed off admissions tutor is not a good thing for you, so don't piss them off. Simple.