How to get my hamster to use a homemade popsicle ladder?

[smahrt]

I haven't been on here in a while! Anyway, I got pretty crafty today. I made my hamster a cardboard playpen and she enjoyed it. I cleaned my room up a bit while she played. I had an empty tissue box, and I've seen people use them as homes for their hamsters so I cut it so she could tuck away inside it, and she was literally in love with it. Once I put it in there she wouldn't touch anything else. When I put her back in her tank I was realizing how I had wanted her to have a sort of upper floor type thing. and the tissue box would be perfect! She just needed a way to get on top of it. I want to put her food up there, but I can't if she cant get to it. I made a ladder, and she seems to be fine with sliding down it (it doesn't hurt her, she acts like nothing happened afterwards), but she cant figure out how to get up it. I don't know if it's too steep or not. For now, I'm just picking her up and putting her up there for practice, but I really want her to learn how to use it.

Excuse how pale the flash on my webcam made me lol but the first picture is the front of the ladder and the second is the back... would the back be easier for her to climb up on?