IMC
Fly as much IFR as you can and if possible IMC to IMC aproaches.
If you have to fly VFR fly in the system.
Do not lie in your logbook, it shows in the sim!
Fly smooth, keep your descend rates at 500feet/min, move the power little by little, if you can (ATC permitting) go from full power from takeoff to power off at landing and never increase the power,plan ahead.
Practice makes perfect