Best thing to do is just go out at night when not a lot of people are on the road and just get comfortable not stalling with basic driving. When it comes to traffic you should work on easing forward and letting the car roll in gear. If you're trying to play that start stop nonsense that most people play while in traffic then you're a fool. Don't get all in the ass of the car ahead, leave space so that you can roll forward in 1st and be able to maintain these momentum with a tap of the gas every now and then.
