Down to the river?

Was wondering what ya'lls opinion was on playing down to the river, with raises in front of you headsup, when you are drawing down to one card for a flush or straight? I have done this in the past and won and have lost a lot of chips as well. I have decided for myself to fold after the turn when i am against a pot sized bet. What do you think?

It really depends on your stack and if you have pot odds to call. Also, how much more can you make if you hit your card. If im out of position, I call a lot less unless the pot if big and the bet compared to it is not huge.