start a VA.. or start your own simulated charter business. or map out a plan.. and then stick to it.
for example: I want to learn and fly the Carenado C90 then move up to the PMDG J41 then by then the new PMDG Dash 8 or maybe the new Aerosoft Twotter, etc.. and that brings up another point.. I fly only payware scenery (ORBX) and payware aircraft as well.. I bought a real pilots kneeboard from sportys pilot shop and yes I strap it on 95% of the time.. unless I'm flying Ants' Drifter ultralight.. or a C172, etc.. I treat FSX as if it would be real.. if the weather is crappy, I don't fly or I'll go IFR.. by treating it real.. that ads a lot of fun.