what do i do with my life?

I am going to turn 18 in a year and my aunt whom i live with said that i'll have to move out at 18. I will be a senior in high school then and it would be really hard to go to high school and try to live on my own so i am trying to graduate early this year but even if i do i honestly don't know what i'm going to do next. i don't know what college i want to go to or what i'm going to major in. i don't even know what i'm interested in. my family tells me that i should go into medicine and after i gave it much thought i knew it wasn't right for me. i'm really good at math and physics if that helps. tbh so far all i know is i'm interested in traveling but i know i won't be able to do that anytime soon. anyways i know this question is all over the place and i apologize but the bottom line is i don't know what i plan on doing a year from now and the closer it gets, the more i am lost. i just want to hear some advice and about some of your experiences. i appreciate the help.