I had one chin originally (she's still my favourite!!) but got her a buddy because it seemed so sad for her to be alone. Now they are permanently squashed up against each other. You might find your chin settles once she's got a friend as her cage won't be so lonely!
With regards to getting chins in, well i've got different tactics!
Maggie my rescue chin actually just goes straight into her cage as soon as i want her away (she's a mind reader), smokie insists on circling the room twice to show that she's boss
then goes in and Yuri puts himself in as soon as i put the chair up to the cage (his cage is quite high up). To get to this stage with them I discovered that it's best not to have to chase them into their cage, i just let them out for hours so that they are happy to put themselves back to bed. I think routine is the secret. Every night they are out a couple of hours and then they go away to their cage, the safe place where i won't pester them. With yours, it might be an idea to make his cage a 'safe' zone where you don't chase him out of it or even try to stroke him, make it the nice food zone and quiet place and then he'll love it there.
Good luck!