As always, just sitting by the cage, talking to her, maybe feeding her bits of hay through the bars, or allowing her onto your lap and playing with her in the cage. This is a game I play with mine that you might like: I get a bit of 'safe material' a bit of hay or wood that fits through the bars and I waggle it until they're interested. Then I don't let them get it. I pull it out just before they get it and move it and waggle it again. Cheech loves that game, of course I let her win eventually and she thinks she's better than me. Hehe. Chong, well he gives up pretty quickly, he can't be bothered. I'm still trying to bond with him. I've had him since June and he's a very reclusive one. When he's playing he will run over me but when I try to play with him in his cage he's more interested in trying to escape. I just talk to him and tickle him through the cage. at first he would go mental if anyone touched him. (My boyfriend thought it was so funny he would lightly touch his fur just to see him scarper off backwards through his cage. He got a severe scolding from me for that, no one teases my little Chong) Now I can tickle him for maybe thirty seconds at a time. I also try and pick him up a few times a week, but I never chase him, I let him come onto my lap and then pick him up. It's slow progress with him, as it was with Cheech, but looking at how friendly she is gives me hope for him. You don't have another one to compare to so it's a little harder, but just take it slowly. By what you're saying you seem to be doing things right anyway.
Also, when we first got Cheech she was in her cage downstairs. We moved her up when we had a party so she wouldn't be traumatised by all the people (although weirdly she seems to love meeting new people... and chewing their shoes). We liked her being in our room, where we spend most of our time, so much we kept her there. I would suggest keeping the cage in the room you spend most of your time in, so even when you're not spending time with her, she can still see you and become used to you.