Right off the bat, I would ask you to reconsider your choice. A proven plane like the Slo-V is a MUCH better setup for a beginner. CCLee planes are an unknown quantity, and beginners don't make good guinea pigs.

Throttle controls aLtitude. Elevator controls aTtitude. Put differently, the elevator is not the Magic Up-Stick(tm)!!! You can pull full back on the elevator all you want, but if you don't have enough power, the plane won't climb. In fact, it will probably descend!

When hand launching, the elevator should be neutral, or whatever it's trimmed to for level flight. You want the plane to fly away straight and level, so it can pick up some speed before you try to climb or turn.

With an on/off plane, you will probably need to "pulse" the motor on and off to maintain level flight. It depends on the plane.