I'm sorry for what you've been through, Cleo.
It looks like Nell's the person to talk to about webcam, I stopped years ago when there stopped being enough work to go around. I couldn't be bothered to get dressed up for just one show. I've heard lots of bad (and no good) things about directcam. You can offer only prebooked sessions, but then aw won't promote you.
I'm still registered for phone although I hardly ever make myself available. When I do, not much happens. Sometimes I get a booking. I think you need to pay for advertising to get work, I've heard that being featured (not "x of the week", just so you're in the featured list) is worth it, and it's cheaper if book slots in advance.
With phone sex I found that most of them left me to do most or all of the talking, so I suggest writing a couple of scripts to fall back on if you get tounge tied. I usually did a blow job, since I'm good at describing one in detail. I think most people repeat themselves a lot rather than going into details, but I find that difficult.
If the guy's a talker than you just need to go 'ooh' a lot, and if any actual words come to mind you can use them too. I had quite a few subs calling, they liked me to get them to hurt themselves with household implements or tell them that they had a tiny penis that would never satisfy a woman.
Directchat doesn't have any of the problems that directcam has, so you don't need to worry about getting work that way. I mostly got prebooked sessions (might have been because I charge 10p extra for direct), and with those you need to be able to bring the session to an end when the time's up. Performing an orgasm usually gets them off and then they're gone, often without a word, which I find odd.