I Hate Poker

Do I really or is this just some sort of frustrating release? KQ of diamonds, raise pre-flop, several callers. Flop Ks Jd 3d. Top pair with a flush draw and good kicker. Bet the pot two callers. ???? Next card 3c. Bet pot again. One caller. River 5d. Bet big, get re-raised? Call, the guy has 3 5 offsuit! Are you kidding me? Then again with the Kings similar and the guy has K 3 and while I have A K. King comes, large bet showdown full mother trucker house KINGS AND THREES!!!!! WHO ARE THESE PEOPLE?!?! I know poker comes with bad beats but seriously, going in with the better hand, betting strong enough to move people out and nothing but a big fat turd. Did I mention I hate poker?