You mention that nobody understands you. But do you understand you? Maybe spend some time trying to figure out why you are the way you are.
You're co-dependent which is not a good thing. You may already know this, or have figured it out, but co-dependents attract toxic, exploitive personalities (like narcissists and borderline personalities). There's a good book that explains why this happens called "The Human Magnet Syndrome." It also discusses how co-dependents are formed.
The main problems co-dependents have is they're looking for love from outside themselves because they don't really love themselves. This may be something you need to work on. From the language you use, you are very harsh on yourself. Be more kind and accepting of yourself. This sounds easy but for some of us it's extremely difficult. It may take you years to be able to do this. If you didn't get love and acceptance from your parents growing up, it can be really fucking tough to fill that hole. But co-dependents who go looking for other people to fill it are doomed.
As for not relating to people on a deeper level, most of the world is pretty fucking shallow. There's a reason Hollywood movies are moronic. There's also a reason artists and outsiders move to major cities. I'm in NYC and it's a huge fucking struggle and a pain in the ass and I'm often miserable. But I can't leave because it's a place where intelligence and intellectualism is appreciated. And there's nothing wrong with being different or weird here because everybody is fucking different. Maybe think about moving to a city. If you can't do that, maybe a town with a lot of artists. You have an artist's mentality. I hope you have a creative outlet too. If nothing else write about feeling alone in Texas.
Wish I could be more help. Just remember the world needs more people like you. We have enough shallow people. Could use more people trying to understand things on a deeper level.
As last words, the more pain and misery you go through the more beautiful you'll realize the world is. It may not make you feel any better but you will appreciate the beauty in things with a depth most people will never have.