Help! Stuck with this texan accent?

Well i speak with a british accent for the most part but after watching brokeback mountain(damn you Jake Gyllenhaal) i imitated his southern accent just for kicks. And now i can't speak normally!!!!!! It's been 2 days now and i'm still down with texan and i can't do anything about it. I tried reading out poems, forcing a british accent out but i can never manage a straight sentence. It's like i forgot how i used to use mah tongue to pronounce. Any ideas on how i'm gonna cure this? It's really getting old and i'm avoiding talking to anyone as little as possible cause they think i'm just pulling their leg.

P.S.( I'm still thinking in my original accent.)