Overpair on scary board

[The Legend]

Here is a hand I had yesterday. My logic on the flop here was with the dangerous draws out there, I'd call the flop and bet a blank on the turn(fold to a turn raise). With the A falling, I figured there is a good chance I'm ahead, enough to be ahead of all draws and jacks. I didn't want to give a free card, so I donk bet. I had yet to have a read on the villian here. On the river, I figure I'm good enough getting 8.75 to 1 due to the villains turn action. How is my line?
Party Poker 2/4 Hold'em (9 handed) converter

Preflop: Hero is CO with Qs, Qc.
3 folds, MP2 calls, 1 fold, Hero raises, Button calls, 2 folds, MP2 calls.

Flop: (7.50 SB) 8s, 7c, Js (3 players)
MP2 checks, Hero bets, Button raises, MP2 folds, Hero calls.

Turn: (5.75 BB) Ac (2 players)
Hero bets, Button calls.

River: (7.75 BB) Jc (2 players)
Hero checks, Button bets, Hero calls.

Final Pot: 9.75 BB