Wall treatments “Asymmetrical”?


Just got a pair of Wilson Audio Sabrina X’s and thinking about acoustic room treatments. If I can only place panels on my left wall and and not my right wall (I can fore and aft) will I be creating an unbalanced sound? 
 

left wall blank 

right wall fireplace and Flat panel tv above it 

rear wall can put a panel or two 

front wall a panel/diffuser and bass traps 

sleeeepguy

Thank you for the quick reply and things to consider. 
 

Assuming you mean more than tape measure measurements, how would I best go about measuring my room?

my system sounds really good, not harsh I have a record storage bookshelf about 18” behind speakers the bookshelf is against the front wall

im new to this level of consideration for my listening space but want to maximize my enjoyment. Is there a good read on this or acoustic panel company that can guide me?

"Sound Reproduction" by Floyd E Toole on Amazon for $23 in paperback. It will be the best $23 you ever spend. It should be mandatory reading for all audiophiles, especially those who are dealing with speaker set up. Too much of the stuff you will read here is either uninformed or presented to stimulate commerce.