I am new at this but I thought I would input my advice, not based on my experience with beardies but with animals in general. I hope that you do not give up on him, as mentioned before if you 'get him off your hands' he may end up in an abusive environment. Also please try not to get frustrated, I am sure that he can sense this when you are handling him. I would suggest trying going slow, your movements and how much you expect out of him at a time. Get him out several times a day and do it for short periods of time. At least he won't feel like you are imprisoning him, just let him get adjusted to you picking him up, talk to him! yes talk! Some people may feel strange talking in a soothing 'baby voice' but this does have a calming effect and if you are at least vocal and 'gentle' he may be less prone to react aggressively. To me it sounds like he feels threatened, and if he becomes accustomed to you picking him up and releasing him only after a minute or two of holding he will start to realize that this is not a bad thing. If he starts fighting you too much or becomes distressed I would let him go, even if earlier than what you really anticipated.I would stay right there at his 'tank' so that he might feel more secure.Over time I would increase the length of handling and the distance you move. Also another thing that worries me is how is his eye sight? Does he have any problem eating crickets or roaches? If anything is wrong with his vision this could make him nervous too. I honestly believe you can tame him up and that when you do you will have a good bond. Is there anyone else in the house that could be mistreating him, not necessarily intentionally but perhaps someone too young to properly handle him?