First post in YEARS. I simply cannot learn to play postflop. Anyway, should I be playing this some other way? Fold river?

Winning Poker, Hold'em No Limit - 130/260 (32 ante) - 9 players
Replay this hand on Upswing Poker

BLeeDaHype (UTG): 21,562 (83 bb)
EraldoMalf (UTG+1): 18,581 (71 bb)
sumdumfuk! (MP): 18,312 (70 bb)
Sqwishy44 (MP+1): 37,880 (146 bb)
Tommywallnuts-51 (LP): 14,747 (57 bb)
Easy-Go (CO): 19,514 (75 bb)
NATHAN02 (BU): 19,198 (74 bb)
Dbl_G (SB): 11,605 (45 bb)
h0lybr0k3n (BB): 20,000 (77 bb)

Pre-Flop: (678) Hero (h0lybr0k3n) is BB with 9♠ Q♠
5 players fold, Easy-Go (CO) raises to 520, 2 players fold, h0lybr0k3n (BB) calls 260

Flop: (1,458) 9♥ Q♥ 3♦ (2 players)
h0lybr0k3n (BB) checks, Easy-Go (CO) bets 729, h0lybr0k3n (BB) raises to 2,057, Easy-Go (CO) calls 1,328

Turn: (5,572) 6♦ (2 players)
h0lybr0k3n (BB) bets 4,064, Easy-Go (CO) calls 4,064

River: (13,700) 8♦ (2 players)
h0lybr0k3n (BB) checks, Easy-Go (CO) bets 10,275, h0lybr0k3n (BB) calls 10,275

Total pot: 34,250

Showdown:
Easy-Go (CO) shows 9♦ A♦ (a flush, Ace high)
(Equity - Pre-Flop: 70%, Flop: 16%, Turn: 25%, River: 100%)

h0lybr0k3n (BB) shows 9♠ Q♠ (two pair, Queens and Nines)
(Equity - Pre-Flop: 30%, Flop: 84%, Turn: 75%, River: 0%)

Easy-Go (CO) wins 34,250

Till the River i agree with your play. Otr i would bet small like 1/3Pot. This accomplish 2 thinks: you can still get value from AQ maybe KQ and you block a bigger bet if he got it you can fold and saved money.but i see not so many flushes here. He just has A9 and AQ in Diamonds witch makes just 2 Combos and JT got there but i am not quite sure if he would let that one go ott. So you get more value than you loose and this spot at this stakes is just completly underblufft so you don't need to worry that you get bluffed out by worse

flop raise is a bit small but this is pretty much a cooler -I;m not sure we can fold top 2 on this run out