18 and Never Been In Realtionship and I want some advice to get into one.

First of all, my English is not perfect. If there are grammar mistakes, I'm sorry.

​Guys, I don't know how to start. My situation is very complicated—honestly, I made it complicated. I am 18 years old and graduated from high school last year when I was 17.

​The problem is, I have a lot of girls interested in me. They do things like give me eye contact and look at me again and again. It's rare, but sometimes happens, that total stranger girls call me a "handsome boy," even yelling it from a distance. I have even approached girls who were total strangers, and when I do, most of the time they give me their number. Usually, they are older than me. I don't know why, but they don't believe my age. I even had a teacher who loved me and told me so when I was a teenager.

​Still, I can't find a girl that I can be in a long relationship with. Even if I like them, at some point, I get tired of them. Like, I will be consistent for one month, and then, I don't know... it's like I get tired of the commitment or whatever it is. It pretty much messes things up. The women think that I have a lot of choices—which I do—but they are not choices I like to be with. Or, I just have a commitment issue.

​My mood swings are like this: I am super interested in one girl for a couple of months, and then I completely get tired of her after some time. It comes out of nowhere. Like, if I have a bad day with my family, or at the internet job I work on to become successful, on that bad day, I don't even want to call her. That usually makes the relationship between me and the girl I am dating more soft and complicated.

​I usually have this type of girl situation: I like a girl, and if the environment makes us see each other, it goes well. On one occasion, I might kiss her. But if there is no occasion that makes us consistently see each other (like school), the relationship vanishes. I don't claim to have ever had a relationship where I liked a girl, she liked me back, and we supported each other and talked to each other freely. Even if I get one, it won't last more than a week.

​Sometimes I have an urge to have a girlfriend, but my thinking or commitment issues won't allow me.

​Also, I had a pretty messed-up childhood that was so painful and feels like hell. Most people can't even process it in their head.