Crickets are fine. I've NEVER heard the thing about their legs. Yoshi is about 8 months (ish) and he eats like, 40-75 a day depending on his mood and how much of his greens he has eaten. Let her eat as many as she can in 10-15 minutes. Carrots are ok as an occasional treat but they should not be fed as a staple. Definitely look at the beautiful dragon list for the foods that are ok. (Mine likes carrots too, and i have a hard time not giving them to him sometimes. LOL)
If it's still an issue, tell your fiancee that sand actually is NOT their natural environment. The deserts of Australia are actually more like very dry, hard dirt.
Ugh... I seem to be the only petstore employee that knows what I'm doing. Ok... They DO NOT need a light at night. It can disrupt their sleep and stress them out. No light for night time. I have the reptisun 10.0 uvb tube and it's on a timer for 13 hours a day but you can do that however you want- timer, turn it on and off yourself, whatever. But it needs to be on 12-14 hours a day. Then I have a daytime basking bulb which I just use a household light bulb, mine is a 60 watt. Then at night I have a ceramic heat emitter and I turn it on and let it warm up before I turn the basking light off. Then in the morning, i turn it off and the light back on. that way while the light heats up, the lamp is cooling down.
For cleaning, I personally use clorox wipes and then go over it with a scalding hot washcloth to make sure there's no chemicals left from the wipe, then I let it dry. But there's several ways to do it, one with a bit of bleach but idk the exact bleach to water ratio so I'd wait for someone else to comment on that one before you try it.
She'll warm up to you the more she gets used to you. She may also still have relocation stress from moving to her new home but she'll be good soon. Hope that helps! :wink: