Now an example of what I consider as one of my worst folds:

Seat 5 is the button
Total number of players : 5
Seat 5: Renars21 ( $4.09 )
Seat 3: aibmoloc ( $59.62 )
Seat 2: vino55 ( $12.75 )
Seat 6: lucyd222 ( $29.70 )
Seat 1: Claude40 ( $10 )
lucyd222 posts small blind [$0.10].
Claude40 posts big blind [$0.25].
** Dealing down cards **
Dealt to aibmoloc [ 9d 8d ]
vino55 raises [$0.50].
aibmoloc calls [$0.50].
Renars21 calls [$0.50].
lucyd222 calls [$0.40].
Claude40 calls [$0.25].
** Dealing Flop ** [ 8c, Qd, 7d ]
lucyd222 checks.
Claude40 bets [$2].
vino55 folds.
aibmoloc calls [$2].
Renars21 folds.
lucyd222 folds.
** Dealing Turn ** [ 4h ]
Claude40 bets [$4].
aibmoloc folds.

Psychology of missing the turn. Do you ignore in such a situation the turn? I always tend to become a little bit nervous when I miss the turn and have to pray for the river.
Since I havent played many hands (about 20K) variance scared me. I already had some drawing hands which didnt complete and cost me a lot of money. Irrelevant? Should I just trust in math and likelihood?

Was it a bad idea to call on the flop because villiant was a low stack and so there wasnt a lot to win?