There are two ways to delete your account :
Simply click here and follow the Instagram instructions yourself
1. Log in to your Instagram account by your computer.
2. Then click on Profile
3. Now, click on “Edit Profile“
4.Now, click on “I”d Like to delete my account” (located at the right hand side corner).
5. Now choose any of the option.
6. Now last, enter your Instagram “PASSWORD” and then click on Permanently delete My account.