Would it be possible to delete my account to make another one?

My account for glitch is linked through github. Can I unlink my account and make a new one, because someone is trying to get into my account and use my projects.

What would you want to happen with your existing account and its list of projects? We can relatively easily delete your current user account (and unlink it from any projects) if that’s sufficient.

I’m also not sure what you mean by

trying to get into my account and use my projects

and how a new account will help.

Do you mean unlink your github account and link your glitch to a new github account? Or do you want a completely new glitch account? As for getting into your projects, change your password. I use characters such as @-Sa1}{ and such to make mine secure.