You can also change the realism settings if you wish, you can turn them up or down to suite your needs.
I fly with most things on but you can for example set fuel to unlimited, etc.
As Csturdiv mentioned Ms FS
also has lessons which should get you going in no time (and increasing your realism via the settings).
I do however suggest that if possible, you get yourself a joystick if you don't have one, you can fly without one but I think its much easier and more realistic with one.
Lady Guinness is ready to fly...