Welcome to RC!
You can learn a lot here! and alot from your plane. Balance is VERY important and trim comes in a close second. YOU can check balance on the bench. nose to tail is th e"CG" or center of gravity. Also check that it balances wing tip to wing tip. Thats a little harder but worth while. Make sure all the control surfaces are "centered". Do this with radio and plane ON and look that rudder and elevator are in the "neutral" position. Check now that they move in the corect direction. IF all is good hand launch straight and flat with noe and tail parallel to ground or SLIGHTLY up and wings level. NO WIND
watch what it does and make SMALL trim correction to achievel level flight. Now you can attempt to fly around the field. Small inputs on the sticks! Good luck Find a club or an experienced flyer if possible cuz that is priceless help!