I agree with KaotikJezta try and persevere, maybe see if someone with some experience could have a look at your set up and see if any changes would help.
I have a young Murray Darling who drives me crazy with her snapping but I just take it easy and when handled is only for a few minutes at a time. She will hopefully calm down eventually and if not it is just her temperament, like people some are easy going and some are pains in the butt!!!
I also have a woma that is like a placid kitten - untill she decides she is hungry, so both very different.
Good Luck.