To get better takes mistakes.... you need  to just  screw up!  
Be safe . But make mistakes.
In my  first year of middle school  I make a dinky Tesla coil  that was  never working right.
 It would burst caps and burn up transformers. ( jam my  LAN in the home . ) 
		
		
	
	

I learned AC math to understand what was going on with the thing.( it was WAY over coupled)  
A few years of learning and many dead neon sign transformers.
I manged to get a 14kV  pole pig and some Big freaking caps.  
This is what happened on my final coil I built for my self.Venom.


Venom can do 12Feet. normal is 8 or so.    My mentors coil can do 120 FEET!  they are known as Kva Effects.
To make anything from a game or a movie takes  skill and  loads of it . 
Heck I spent  9 Years in college  studying Electronics Engineering along with 
theater costume and makeup design.
Ive learned just enough know Ive got a very long way to go!!
I drool over the suits I see here. but that just make me wanna improve. 
Every thing you learn adds to your  final skill set.
Your personal toolbox in your head... 
If there is a part of props you don't get. 
Then take a small risk and try something you Can do then mod it .
SO  lets say you  wanna try casting .  I would  make a  blocky  magnum.  I mean make it  ULGY as heck. then  learn to lay on the outter cast.  make a few  solid  casts . 
Any build is  a chain of  steps.  learn the steps and then  link them up.
Peter