I’m afraid that’s just how the market works, sweety. It’s a free country, if you don’t like it, move to Stalinist Russia, and take that arsebadger Dmitry with you while you’re at it. You could join a sex workers’ union if you like, but those are mostly for managers and agencies, you’d have to self-crit for appropriating their union from them.
If you really want to charge higher prices (IDK, like if you need to pay your rent or feed your children or something), I’d suggest carving out a niche for yourself. Do a few pro bono kills for exposure, put yourself out there. Have a calling card or signature of some kind, the tabloids love that. Hopefully they’ll sensationalise it all and give you a cool nickname, and that really does all the advertising for you. You just have to take your chances and hope they don’t give you a crap name like “Pub Harpy”.