Hello All,
Please Help me with this one... blinds are 2/5. I am up 350 before
I ran right into a bad beat "train wreck" last night! What would you do if you had;

K 5 same suit, little blind and everyone is limping in.
I called ...

Flop is
4K4
I bet 15$ everyone folded but 2 players and they just called me.

Turn is
K
I checked thinking that I am going to trap them... then they bet out 15$

River is
4
I went all in. 1 folds and the other called.
He had 4 of a kind... 4 6 off suit.

What would you do? And Why? Because what I did was wrong! I want to be better at my game so PLS HELP!