Hi Kinkyink and welcome
First and foremost you can (and will) turn down a punter for any reason you like; not wanting to see them is a reason. Adultwork is just one of many advertising platforms, and how you choose to work is nothing to do with them. I have idea idea about anything to do with webcamming though, so I'll leave that for somebody else.
Being outcall only will limit things a bit, but a lot depends on where you are and when you're available. If you have other sources of income then I'd give it a go and just be very picky - you might want to stick to hotels for starters rather than private residences but either way, make sure you have a security buddy who knows where you are and is expecting to hear from you.