Give her a few weeks to settle in then you can get some reptile tweezers off ebay for a couple of quid and hand feed her with them! A lot of people will say dont because she will get lazy but I dont see a problem as long as you dont do it too often!
As for the crix.. Try putting some in a box and put them in the fridge for 5-10mins before feeding. This will slow them down a bit and make them easier for her to catch