since you got it started i guess you dont need any more suggestions!
i change roughly 2 fuel filters a month on our Duramaxs so i have done it a few times and the best way to do it is,for starters change the fuel filter and then when you prime it you'll notice in front of the alternator there is fuel line bleeder after the fuel filter housing with a black plastic cap thats screwed on it(looks very similar to a AC bleeder).as you manualy pump it up with the pump on the filter housing use a small screw driver and release the pressure and your good to go in seconds!