re: Poker & Over-excited ?
This looks like a move I've done time and time again. You've got a great hand on the flop, pretty much the nuts, but the turn changes that all around. I find I'm having a tough time sometimes changing pace when the cards go against me.
I'm not sure the all in is a good move, if you had the 8 it's not something people would expect you to do, so I think it's fold value is minimal. I think there's a good chance villain has an overpair or the 8 in which case they're calling and you're done.
The best case scenario as I see it is when you have an aggressive image on the table, and they're prepared to gamble with overcards. But in this case they're unlikely to call your bet, you would have been better checking and maybe making a small value bet on the river.