I have no idea how to play cards like these. I lose and lose and lose with big starting hands.

Absolute Poker No-Limit Hold'em, $0.10 BB (9 handed) Absolute-Poker Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG ($13.80)
UTG+1 ($20.22)
MP1 ($8.90)
MP2 ($10.40)
MP3 ($3.90)
Hero ($20.65)
Button ($3.74)
SB ($2.43)
BB ($4.01)

Preflop: Hero is CO with K, K.
UTG calls $0.10, 3 folds, MP3 calls $0.10, Hero raises to $0.6, 3 folds, UTG folds, MP3 calls $0.50.

Flop: ($1.45) 9, T, 8 (2 players)
MP3 checks, Hero bets $0.9, MP3 calls $0.90.

Turn: ($3.25) Q (2 players)
MP3 checks, Hero bets $2.6, MP3 calls $2.40 (All-In).

River: ($8.05) A (2 players, 1 all-in)

Final Pot: $8.06

Results in white below:
MP3 has 8h Qh (flush, ace high).
Hero has Ks Kc (one pair, kings).
Outcome: MP3 wins $8.05.