Please never be so confident that your flying becomes as automated as driving a car.
I once witnessed 4 businessman get into a Piper, taxi and take off in the space of 2 minutes - no time to warm the engine,conduct power checks or do a passenger brief - their attitude to flying was like driving a car.
A while later a report into a fatal business-jet crash on takeoff into IMC concluded that the owner/pilot had rushed his departure so the gyros had insufficient time to spool up leading to inaccurate AI indications.
I have over 1000hrs and regularly fly long distances single pilot IFR - however I have built my confidence up over 20 years - my first solo cross country post PPL was a 30mile trip Barton/Bury/Barton!
Fly safely