Unknown. I think my bet sizing is fucked?

I keep trying to milk value from weaker hands yet I just end up getting to the river too often...should I be potting flop and like 3/4 the turn to set up an easy river jam?

PokerStars No-Limit Hold'em, $0.10 BB (8 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

CO ($0.85)
Button ($9.80)
SB ($12.30)
BB ($8.65)
Hero (UTG) ($10)
UTG+1 ($8.20)
MP1 ($2.30)
MP2 ($6)

Preflop: Hero is UTG with A, Q
Hero bets $0.50, UTG+1 calls $0.50, 1 fold, MP2 (poster) calls $0.40, 4 folds

Flop: ($1.65) 7, A, 4 (3 players)
Hero bets $1, UTG+1 calls $1, 1 fold

Turn: ($3.65) 6 (2 players)
Hero bets $2, UTG+1 calls $2

River: ($7.65) J (2 players)
Hero bets $3,