And if you have experiences in programming and 3D Modelling, all you really might lack is basic experiences in astrodynamics and spacecraft engineering. Not that you need much of it, but it clearly helps to learn what the difference between torque and force is.
Good question for testing if you are already ready for Orbiter:
A single satellite thruster with 10N vacuum thrust is operating in tangentional direction and is 1 meter away from the CoG. Thus it produces a torque of 10Nm. How high is the total resulting force on the satellite?
If you can answer this question instantly and correct, you are prepared already and need no emergency training in physics.
(If you want more fun, I recommend learning rocket engine theory... "really big cinema", to mistranslate a German proverb)