Do you think this girl was interested in me or not?

How attractive you are doesn’t matter, only a saint would be able to put up with your level of whiney insecurity and constant need for reassurance. See a therapist.

Have you messaged the attractive girl since ? has she replied

I wouldnt really take the part in bold a sign they are interested in you sexually.
That is more of just being polite and friendly.

Perhaps get their number or snapchat, if they reply to that, then they are interested.
Kissing is also a sign of interest.

Oh for real? I thought that in nightlife, 99% of women who find you unattractive either blank you, turn you away quickly, move away (or give their friend the look to come get them)... Various other techniques... And they won't make eye contact with you and smile (before you talk to them) or anything along those lines. Won't approach you several times.

And I found the polite ones will usually talk but be kinda "plain", not really put effort into maintaining conversation, etc. usually have either dead or forced facial expressions. Not really completely focused on you, look for a way out (like going to the bathroom, whatever)...

Am I wrong?

This bodes very poorly for my aesthetics...

yes. Being friendly doesn't mean she finds you attractive, she still might, its just not a guarantee.

Ive had friends spend the entire evening bar hopping with a guy and then dont want to text him back the next day

Did she grab your head while kissing? That’s always a good sign

I don't remember where she put her hands while making out I focus too much on what I'm doing to notice what they're doing.

Just before making out though I remember I put my hand on her neck/cheek area and she reciprocated that. I wouldn't think that has any special meaning though.

She touched my body a lot.

Describe what you look like

Which city do you tend to go out in? Hope that's not too personal

Why?

I wouldn't mind telling people tbh it's just that I think there could be negative consequences of doing so, so would prefer not to reveal that info.

2 reasons. Firstly would like to know if you're in a big city where there are lots of women around and lots of different bars/clubs. Or if you're in a small town with limited selection.
Secondly, just wondering in case you're in one of the two cities I live in. Wondering if I'd ever bump into you on a night out.