I got tbi 13 months ago.i became gay because of it.are there any solution to make me heterosexual again?

Studies Exist but---: There is a literature reporting on changes in sexual preference following TBI to limbic structures, however, none of these are randomized controlled studies. Rather, they are case series meaning that the proof for such behaviors following TBI is a matter of discussion not fact. We'd need more information on the injury, history of your sexual preferences before after etc. to get some ideas.