Summary: Stick to agencies; avoid LL until TERB members verify it.
Indy vs agency is a common discussion here. I think for patient newbies the Indy route can be a good choice. Write a respectful intro, including proposing a specific date and time so that they can see that you’re not a timewaster, there are threads here on that. I would limit your sources to this board and tryst, and look for someone with good reviews, and ideally an active social media presence that can show you a bit about them. The trend away from references to other forms of screening also helps newbies depending on what info you’re ok sharing. And a well written, respectful intro can often result in no need for screening.
It can take a bit longer to line things up, but you do have the ability to ask a couple questions as part of booking in case there’s something specific that you’re looking for.
Cost probably a bit higher, but maybe that’s less of an issue for a first timer.
If you’re looking for a way to try out exchanging money for sexual gratification a low mileage massage parlour like allure or flirt can be a good choice. Or higher mileage places as well if want fs.
happy hobbying…