Did I play this wrong?

[testaaja]

6max 6-handed. I'm on button with QJ.
1 posts blind, he just entered the table.
So it goes call call check, I raise. Everyone call.
To the flop we go: J[img]/images/graemlins/diamond.gif[/img] Q[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/spade.gif[/img]
It is checked to me, I bet (was this wrong? Should I have waited for the turn? I thought that I didn't want to give a free card since there was a 2 flush out. Well my opponents did not do mistake when calling, so I dunno if it was correct) everyone call.
Turn: K[img]/images/graemlins/heart.gif[/img]
SB bets BB raises, 3folds, I call, SB raises and BB caps, I call. (I thought THERE might be AT out, but these players tend to cap with K there so.. I also thought that the pot is too big to lay this one down since I got a decent hand ADVICES appreciated [img]/images/graemlins/smile.gif[/img] )

River: 7[img]/images/graemlins/diamond.gif[/img]
SB bets, BB and I call. Final pot 23,4BB.

So did I fuxor up? I'm really new to 6max. I've been playing full ring for some time, but I didn't like it. Now I really want to learn to play good poker, wich I don't know yet ! I'm willing to put in hours and learn things. Since now I've not really been on "learning" mode when playing. Now I see when I make some mistakes, but well I think I need to post those hands here to get some advices HOW I was supposed to play them. I'm looking forward on improving my game!
Thanks!