The thing about whores is that they are always looking to extract the most money for the least amount of sexual output. If the sex industry was honest and fair, then I'd say tricking would be one of men's best options. However, whores will finesse your ass, and AMPs (Asian Massage Parlors) are no different.
I used to trick when I was single. The first time I ever tricked was at an AMP. The chick they gave me was badd, and I nutted in the condom when she started sucking my dikk (I was 18, and had only had sex once). She started getting dressed, and I told her I wanted to fukk too, but she said no. I protested further, and she went and got the madame. The madame was like, "ONE CUM! ONE CUM!" I didn't know that the general rule with whores is that once you nut, it's over. I thought that since I paid the extra money to fukk, that I was going to receive that service. I was sadly mistaken. That was my last time going to an AMP, but in my other whoremongering experience, most bytches will try to rip you off even worse.
OP, I know the game is hard out here, but you might just have to take that same money and proposition regular broke bytches. Some will probably say no, but a bytch who's really in a bind might say yes. I've personally never tried this, but I feel like you'd get way more literal bang for your buck.