A beginner with AJ

This is my first post to this forum. I'm a complete beginner and have begun
trying to learn something about poker. I've been reading SSHE and this forum
and trying to figure out what's going on....but definitely feel lost out there.

This hand occured last night......Did I play it right?

Thanks for any comments,

Jim

Pacific Poker (.25/.5):

Hero is CO with [A [img]/images/graemlins/spade.gif[/img] J [img]/images/graemlins/diamond.gif[/img]]

Preflop:
Folds to MP1 who calls, Hero raises,
BB 3-bets, MP1 folds, Hero calls.

Flop: [ 6 [img]/images/graemlins/heart.gif[/img] J [img]/images/graemlins/spade.gif[/img] 3 [img]/images/graemlins/heart.gif[/img]]
BB bets, Hero raises, BB 3-bets, Hero calls.

Turn:[T [img]/images/graemlins/spade.gif[/img]]
BB bets, Hero calls

River:[7 [img]/images/graemlins/club.gif[/img]]
BB bets, Hero calls