Poker Stars, $0.05/$0.10 No Limit Hold'em Cash, 4 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.
BTN: $10.45 (104.5 bb)
Hero (SB): $10 (100 bb)
BB: $15.98 (159.8 bb)
CO: $10.45 (104.5 bb)
Preflop: Hero is SB with T
T
CO folds, BTN raises to $0.30, Hero raises to $1, BB folds, BTN calls $0.70
Flop: ($2.10) 4
7
4 (2 players)
Hero bets $1, BTN calls $1
Turn: ($4.10) 5 (2 players)
Hero bets $2, BTN calls $2
River: ($8.10) 2 (2 players)
Hero bets $2, BTN raises to $6.45 and is all-in, Hero folds
Results:
Spoiler
$12.10 pot ($0.54 rake)
Final Board: 4 7 4 5 2
BTN mucked and won $11.56 ($5.56 net)
Hero mucked T T and lost (-$6 net)
Opponent is 29/29, ATS=50 over 14hands
Is this sample size enough to 3bet TT for value here? Table got 4handed maybe 2-3hands ago.
Rest of the hand is ugly.
On flop I bet out 1/2 pot as I believe I might have the best hand and on many instructional videos it usually takes the pot down 
Turn puts out some draws, but it still looks OK for my hand so I bet for value/protection
On river I don't like my hand very much anymore and defensive bet 1/4 pot (this amount is tricky, I wanted him to be able to just call with a lower pair) and I am forced to fold to a raise.
Should I give up on the hand at any time? Play it weak? What would the best line be here?