If you have the room the best way for a beginner is to not worry about the rudder at all. If the plane tracks to the right when you give it throttle then start at the left most corner of the field. i don't like to advance the throttle slowly just give it 3\4 to full throttle let the plane track where it wants to go an in no time at all it will be air born and your flying. A little toe in on the wheels helps but just a little. To much and it takes away alot of power. After you have a few takeoffs under your belt you can start to add a little rudder to straighten things out. The main thing is you have to commit to the take off.
One other very inportant thing make sure its NOT HEADING TOWARDS ANYBODY if it is or you are not confortable with the takeoff for any reason just pull the throttle back right away and start over again. I hope this helps. It has for my students. Good luck. And like the saying goes.Just do it.