As far as getting your beardie used to being held, it takes time, but it will happen. The first few weeks you have him he will be trying to settle down so its normal for him to be more skittish. Instead of just trying to pick him up, let him get used to you buy seeing your hands as you do daily maintence on his cage, and maybe just "pet" him a little, or hand feed him. Hand feeding works really well to get your beardie used to you. Feed him his favorite veggies or kind of work from your fingers and then slowly work on picking him up. YOung beardies are always a little spastic and tend to mellow out as they get older, so it should hopefully only get easier 
As far as water, its sort of up to you. Many people house their beardies without water and only rinse the veggies, but some dont even do that. I personally keep a water dish in there because even if my beardie doesn't drink standing water (and some don't) the water dish helps keep the humidity up a little. Beardies of course are not tropical and do not need a high humidity, but keeping the humidity around 30-40% helps keep off respitory infections and is just better for there over all health. Some beardies will not drink standing water, and for those you can just water their veggies and they should have all the water they need.
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0.1 Bearded dragon
0.1 mexican kingsnake
1.0.2 Leopard Gecko's
0.0.1 Rose Hair Tarantula
1.0 BTS
0.0.1 Reverse Okeetee Corn
0.1 Bullmastiff
4.1 Cats