Can i go back to high school when 18 but y not?

You can't just go *back* to your old high school at age 18. High schools are generally for students aged 14-18 (though this can vary slightly depending on the location and individual circumstances). Once you've graduated or aged out, you are no longer a student there.

However, you *can* still get a high school diploma if you didn't graduate before turning 18. Here are the options:

* GED (General Educational Development): This is a test that demonstrates high school equivalency. Passing the GED allows you to obtain a certificate equivalent to a high school diploma.

* Alternative High School Program: Many communities offer alternative high school programs for students who need a more flexible or different learning environment. These programs may be designed for older students who dropped out or need a second chance.

* Continuing Education/Adult Education Programs: Many schools and community colleges offer adult education programs that help adults earn their high school equivalency or complete their high school education.

So, while you can't simply return to your old high school, you have several options to obtain a high school diploma or equivalent if you haven't already.