It recently came to my awarteness that I paid taxes in the state of maryland when I should not have because I reside in WV, how do I go about recovering those funds?

[Critter]

Step 1 ... file an amended state return.

Step 2 ... keep any incorrect withholding from happening again : 

https://ttlc.intuit.com/community/state-taxes/help/which-states-have-reciprocal-agreements/00/25576