Kareyn I noticed from your post that you say you're not moving left, left but are moved left, left? this is most likely becuase the people your training against are more experienced.
When I spar I try to move away from my opponents stronger side and keep their stronger side at longer range.
If somene tries this on me it's not so successful as I actually fight in a standard stance but am left handed so they actually move towads my stronger side
; if this is not the case for you try switching as they start to turn you, if possible try and throw someting as you switch.