The Asian Commercial Sex Scene - Noob FR on L18H18G15

Just visited L18H18G15
Disclaimer : First time visiting geylang, A lill feedback would be appreciated

$100 for 20 mins, being the moron I am, i agreed to pay.
need some advice for this as this was my first time. I think its way too expensive. whats the standard rate for this house? I wanna know if i did get fucked on the price lol.
Anyways, Here's my FR
It only took me 1 look to decide what i wanted G15, vietnamese (bee) is definitely best looking of the bunch Huge, perky tits. My decision was so fast that she actually said that I barely looked at her before choosing lol.

Shower : It was lengthy, i think she wanted to waste time, said so herself lol.

Body : extremely hot, really fit, HUGE perky tits. I know i said that, but its worth mentioning again. Love them. kinda pretty too

GFE: Kinda good but no french, just handful of pecks. That too because I asked a couple times and was nice.

BJ : Ice and Fire ( Is it usually that short lasting? lol ). balls licking, something I love, again, Very short.

CIM etc : dont think, never ask. never let me lick her pussy. no ass rimming

FJ : She's tight and warm. I dont know if its because of My first ice and fire or the warmth of her pussy, but she made me cum under a minute For that reason, i kept going and she let me. When it started to hurt, I pulled out and she didnt let me continue haha.

She shower me again and offered massage, Okay I guess (never had a massage before)

I think I should have Included this earlier but she is a time watcher, wasted time, asked me to hurry cuz i wont be able to finish in time. Also left massage as soon as the beep went off.

As it was raining outside I sat there wondering whether I should have Just walked off after hearing $100/20 min 1 shot.
didnt really seem like it was worth it
I've been reading around, but if someone could guide me regarding this, it would be really helpful. I regret it everytime, but I know that I'm gonna end up being a regular. Hence, some quality good recommendations with good frenching etc would be appreciated :)
Thank you