25 50 NL on UB hand with AA in big blind

[Ipodkid]

I hold Ah Ac in the big blind a super Lag on button makes it 375 to go, I reraise to 800 total...(is this a mistake here) Flop is J 3d 9d with 2 diamonds. I move in for 3k he beats me in pot, ( was this error) Turn is 4c river 6d he tables AJ off suite and I take it down, did I risk losing him preflop with the re raise, was the push on flop good or should I have check called perhaps if he was to push? I know hes super aggro and me only having 3k in front of me looked weak to him and his big stack?