The other trick is to let the plane rotate early so that the wing will take some of the weight off of the wheels.
Once the plane lifts off the ground, level out at a few inches off the ground to finish accelerating to flying speed. Once the wheels break ground it does not take long to get to flying speed, just a few feet.
The plane can lift off in ground effect while it is still below stall speed, so if you try to climb to soon it will stall unless you have the power for vertical acceleration.
I had to use this technique to get out of deep snow with my jet.

This is the same as the soft field takeoff that is taught in learning to fly full size.