If you have a new model tag there'll be plenty of boundary pushers who try their luck with you because you're new (and because a lot of experienced models have already blocked them for their bs), its just part and parcel of being new unfortunately. Someone told me when I first started to have a list of yes, nos and maybes for kinks/fetishes/boundaries etc which I found helpful. Maybe write one of those out now that you've had a weeks experience and you know what's out there, because I'm sure you've learnt quickly that there's some wild kinks out there you'd never even heard of before.
Don't get wrapped up in the ones that seem like they need a friend, while I'm sure there's many who do need a friend there's also a lot of manipulators on there who will try to coerce you into doing things you don't want to do but they'll act like they're a "nice guy". Ultimately real nice guys don't make models do things they don't want to do, so I tend to say "I don't do xyz kink because I don't enjoy it, and if I do perform xyz kink then I'm not having a nice time and you're going to notice that and you're not going to have a nice time either. I'm open to ideas though if you have anything else in mind". Unfortunately for some I think seeing models being uncomfortable is a nice time for them, but at least it puts those ones off.
Also a part of being new to this is trying out stuff, and sometimes you're not really going to know what you're into until you give it a go, although I wouldn't recommend that with your "no" list. If you've done a show that's left you feeling a bit gross (happens to ALL OF US btw, and not just online sw either) then take some time for yourself. Acknowledge what you're feeling, know that you never have to do it again and don't beat yourself up over it. Go for a walk, chat to a friend, get verified and come chat with us in the models only section. If you tried something and it wasn't for you, now you know and next show you're going into it with more knowledge. Good luck