Can you make yourself gay? like be 'influenced' into it by watching TV shows, movies, or other media sources? This is probably a really weird question to ask, but I never questioned myself until I kind of exposed myself to it. So I guess it makes me wonder if it's possible to 'make yourself gay' or if maybe there was another reason I was drawn to it.
No, you can't. Otherwise most gay people would be straight since we absorb straight media more often. However, if you were gay all along and just repressed it, having a positive influence can help you realize earlier.
I'd agree with Creativemind, all the science I've seen points to homosexuality being something your born with, not turned into later. However, if you are gay or bi, and repress it, it could defiantly seem to pop up later. I think that's what I did honestly, since I didn't figure out i was bi till I was 23. There were defiantly signs earlier, that looking back make it seem obvious, but it took me a long time to get to that point. I think I was just scared, on some deep level, of being gay. It wasn't that I was homophobic or anything, I never actually hated gay people. I just was scared of being gay, and so I think I just ignored any homosexual feelings and focused on the heterosexual ones. Later, as I met more LGBT people, made friends with some, and was exposed to LGBT stuff in general, I think i became more open to it, till I was finally willing to look at the homosexual feelings I'd been ignoring for years. Not necessarily saying this is what's happening to you, but it is a possibility.
It is not possible to change one's sexual orientation in either direction. People sometimes go into denial and suppress it, sometimes for decades, but... your authentic self will always come out. You can't make yourself gay by doing something-or-another, nor can you make yourself straight.
Exposure to media only ignites what is already inside you. I can remember always being disgusted by heterosexual and homosexual sex scenes in movies but I have always felt sex scenes belong in porn and not mainstream theater as it isn't necessary to the development of the story since we should all be smart enough to understand the implication of a sexual involvement. However as I began to watch pornographic media i automatically realized I was more drawn to the male performers even when the porn was heterosexual in nature. To your original question "Can you make yourself gay?" Yes Once you stop submitting to the desires of outside negative influences that seek to undermine or bend your true nature to their will.