Few tips (I've had several hamsters).
Over the period of the next few weeks start waking her up 10 minutes earlier every other day. You have to do it slowly as naturally they are nocturnal. Try to get her naturally waking up at say...4pm
Put her in her ball (presuming she has one, and if not get her one), for 2 periods of 1 hour every day. Or at the very least 1 hour a day. Eg. 7pm and 9pm (or when you have her waking up earlier have her 2 sets of 1 hour further apart)
This way she's getting much more exercise and getting much more stimulation, but not getting it all in one big chunk.
Buy her a BIG cage. My hammys have always been in something that either 3 tiered wire cage (saves on surface area but still gives lots of space) or my most recent ham was in
This
Aswell as just the cage she had....a hanging basket from the top of the cage, a big chew ball, bridge, climbing wall, tubes and a wheel.
I also didn't feed her by putting food in her bowl. So long as her cage was clean I would sprinkle her food on the base. (Avoid her 'toilet' corner of course).
And whenever I cleaned her bed out I would put bedding around the cage so she could make her own bed. Alot of books advise against the bedding thing, but I've never been bitten, and our hammys have always lived at least 2 years unless they had underlying health complications...so I don't think it causes undue stress.
You could also get her a 'hamster play pen' to put toys in, as an alternative to her ball.
Cutting up bits of fruit/veg and putting them in obscure places is a good plan too, not too much fresh stuff though. Make sure she only gets hammy sized portions.
Oh...and putting her in a smaller cage is a bad idea. Particularly as she is nocturnal.
And crittertrail are rubbish. Wire cages are much better anyways, gives them the chance to climb, something they are very adept at!