What you can try next is using clicker training, without the target, to ask Rija to stand still. Shawna's book describes this quite well and, again, break it down into small steps eg click and reward if Rija stands when you take one step away from her. Do this until you can walk around Rija without her trying to follow you and then build up to walking further distances away.
Once you've established this you should be able to ask Rija to stand, then walk away with the target and ask her to come to it. Don't forget to ignore any "soliciting" but to reward attempts for the behaviour you're trying to shape.
Hope this helps and see you on the 21st

Nix
x