Moving in together..?

So my bf and I are both 18. He graduates high school this year and I graduate next year. We both plan to go to college. His mom has handed down a trailer and his stepdad has a spot of land we could move the trailer on. We would only have to pay for the water, food, power, and other expenses. When do y’all think a good time to move in together would be? I want to move in as soon as possible because I’m ready to be on my own. I know it’ll be hard work I’m just ready mainly because I love this person with everything I could possibly have. We’ve been together for almost 2 years now and he is literally the best thing ever! And also because my parents are divorced and they’ve married other people and I have a new step brother on the way. But it’s just tiring because I have to pack clothes and drive all around. They do argue and have different points of views. So if they wanna see me they can come to my house. My parents do approve of him & we do eventually plan to get married and start a family just not soon as we need to chase our careers and everything else. When would be a good time to move in together? And what age? I just need someone else’s POV on this before we make any actual plans. And possibly make a mistake by going to fast. I just need some advice. Thank you!