1.Open Your Profile or account page where the all videos and photo are stored, so...you can access this By tap the icon person-shaped icon in the bottom right corner of your Smart Phone.
2.tap or click on the setting icon,,,,, this in the top right corner of your smart phone....it resembles (three)horizontal dots.
3.click on the "Help Center" option.
4.after that click On Managing Your Account it have many option of ,managing and deletion now to click on delete your account link.
5.After that click on the How do I delete my account while do not read the content of the pages.direct click on delete my account page.you also select disable your account or temporary delete account or Permanently Delete your Account select on your choice want to do ok.
6.After that login with your username and password to verify your delete account.
click Login to proceed to the deletes Your Account pages.
7.After that select a reason to delete your account,do this tap the bottom of the page "why this you delete your account in instagram.chose the reason the drop-down menu and click on done button.
8.After again Enter your password down the page and to continue to enter your password text.
10. after that delete instagarm on mobile succesfully so enjoy it.
Note:Remember All Tricks Only for the Education Purpose and is not intended to affect any company or organization or android developers, Techgot will not Responsible if any kind of damage occurs.!Thank You !