Low Flush vs ____?

This hand was a little nerve wracking - I have 59s in the SB, complete, and catch a 4 flush on the flop. The turn brings another diamond, and I cold-call the .50 bet because I have the flush and am counting on the river not bringing another diamond. My opponent comes alive on the third diamond which scares me, but I stay with him partially because I got him covered and partially because I am used to seeing all-ins with top pair medium kicker about once every 43 seconds. Oh and I remembered in the back of my head reading somewhere on here 2 pieces of advice:

I wont believe you have the flush until theres 4 on the board or somethin like that

Never fold a flush no matter what

Should I have been more wary against this guy opening up on the third diamond, should I have raised more, or am I just learning bad habits playing against these clowns?




***** Hand History for Game 1593372352 *****
$25 NL Hold'em - Tuesday, February 15, 00:55:21 EDT 2005
Table Buckle Up (Real Money)
Seat 6 is the button
Total number of players : 10
Seat 1: stariha ( $41.59 )
Seat 2: Dolchick ( $31.8 )
Seat 3: bragrita ( $26.65 )
Seat 5: bandido1 ( $10.15 )
Seat 6: JeffBest ( $30.3 )
Seat 7: lance79 ( $20.6 )
Seat 8: SmackinYaUp ( $24.5 )
Seat 9: cpzimmer ( $22.7 )
Seat 10: quicksupra ( $29.66 )
Seat 4: CoalTrain111 ( $19 )
lance79 posts small blind [$0.25].
SmackinYaUp posts big blind [$0.5].
** Dealing down cards **
Dealt to SmackinYaUp [ 5d 9d ]
cpzimmer folds.
quicksupra folds.
stariha folds.
Dolchick folds.
bragrita folds.
CoalTrain111 calls [$0.5].
bandido1 calls [$0.5].
JeffBest folds.
lance79 calls [$0.25].
SmackinYaUp checks.
** Dealing Flop ** [ 8d, Td, 5s ]
lance79 checks.
SmackinYaUp checks.
CoalTrain111 checks.
bandido1 checks.
** Dealing Turn ** [ 6d ]
lance79 bets [$0.5].
SmackinYaUp calls [$0.5].
CoalTrain111 folds.
bandido1 raises [$3].
lance79 folds.
SmackinYaUp calls [$2.5].
** Dealing River ** [ 9s ]
SmackinYaUp bets [$3].
bandido1 is all-In [$6.65]
SmackinYaUp calls [$3.65].
Results in white
SmackinYaUp shows [ 5d, 9d ] a flush, ten high.
bandido1 doesn't show [ 3d, 2d ] a flush, ten high.
SmackinYaUp wins $20.75 from the main pot with a flush, ten high with nine kicker.
cpzimmer has left the table.

Bet that flop. Bottom pair, flush draw and longshot str8 flush possibilities.

Bet the turn. The minimum bet tells you nothing but I guess you don't want to get too crazy w/ 95s.

River, you were committed and should not lay it down to his raise.