Backpage was shut down. What happens next is panic. I know, I lived though the shut down of the Craig’s List Adult Services shut down. Try to stay calm. You will be okay, develop a new plan. Get to work implementing it.
Read this from a couple years ago, it was written after Redbook disappeared: http://fairywhoremother.com/4-things-you-can-do-when-your-advertising-venue-disappears/
Here is a running list of places to advertise that still exist. (as of Jan 2017) Some of these cost money, some don’t. Some might be for local areas, others are nationwide. Do your research, see what works for you. Most of all know you will be OK. This happens, it sucks but you are a sex worker you’re already resourceful. (if you have any sites to ad to this list please reach out so i can add them. email@example.com or on Twitter @jennydemilo )
http://www.openadultdirectory.com/ (Removed USA Listings both Escorts and BDSM)
http://www.date-check.com/ (Error 503)