Best thing is to buddy box with an experienced pilot.
2nd best. Have an experienced pilot give your airplane a trim flight.
3rd best. Have a friend stand next to you to adjust the trim switches for you so you don't have to take your eyes off the airplane.
Practice this on your sim with your friend. Puposely take off with your trim switches off center and you practice controlling an out of trim airplane and your friend will practice making adjustments as you yell them out.
Example: You say give me a little right aileron and your friend should be ready to make the proper adjustment.
First flights should be on a nearly calm day in a very large area with no trees or poles ect.. around. Try to take off and land strait into any wind.
Take off are not really very hard just don't try to climb too fast, just a gentle climb.
Use full throttle for takeoff and climb out, once in the air you should lower to half throttle or a little less. This will be your normal flying speed and the speed at which you want your trims set.
Just fly large circuits and only in one direction for a couple of flights.(ie..all right hand turns) Do the same in the other direction for a few flights.
Landings? lower your throttle as you near the end of the field after you make your final turn cut your throttle and concentrate on keeping the wings level (if you picked a big enough field you shouldn't have to worry about hitting a runway) when you get about 2 or 3 feet off the ground feed in just a little elevator (flair) this will bleed off airspeed and let your plane settle in on it own.(carefull not to give too much flair, 10 to 15 degrees is plenty)
IF you notice you are running out of room don't be afraid to throttle up and go around for another try. Don't panic, it is just another take off.
Make your flights short so you have plenty of battery left for multiple landing attempts.
Practice touch and goes on your sim.
Good Luck