I don't fall asleep easy

My whole life it's always taken me a while to fall asleep. I've never been the type of person that lays down and falls asleep instantly. I lay in bed for at least an hour before falling asleep. That's just the minimum. On average, I'd say it takes me about 2 hours to fall asleep. And also, it doesn't matter how tired I am. This can be a very bad thing. Like when I need to sleep! During the school year, I'm so sleep deprived. My house is not quiet when it's my sleep time. My family stays up and makes a lot of noise. I can not sleep if there's the tiniest amount of noise. So I have to lay in bed and wait for them to be quiet, and then I have to wait for myself to fall asleep. I get less than 6 hours of sleep when I'm in school. In the summer I go nocturnal. Literally. I go to sleep when the sun is just rising. But now I am in Slovakia living with my uncle, aunt, and cousins. So of course my nocturnal ways can not continue. We have to go to bed around 11 -12 and I simply can not do it. I lay there for 2-3 hours. And then in the morning, they wake me up. So I'm so tired on this trip, it's insane. But no matter how tired I am, I can't fall asleep. It's just an impossibility for my body to go to sleep before 2 am.