first get some help to learn your just throwing away your hard earned cash trying to go it alone if you have not flown before, if there is no possability of any help then get a simulator, and practice using that before you take the real thing to the field,there's alot of crashing to be done before the flying begins.

there are several sims that can help with some of the basics of flying a plane,some are very low cost and quite basic, others will run a couple of hundred dollars U.S.
 the intangables are properly trimming the plane for level flight,making sure its balanced correctly, and some basic safety issues that need to be observed.

these are some of the many things that a experienced pilot will know how to check for,that the beginner will have trouble with, by the way just because a Cessna is a trainer in the real world doesn't necessaraly mean its a RC trainer, the concept doesn't always transfer back and forth between the two, the best plane for a first time flyer will have alot of dihedral in the wing so the plane will be stable in the air, planes with strait flat wings are a little more tricky to control, regardless of power.