Step 2
Swap the current username on the account you've purchased with a new random one, and turbo/swap your Instagram username that you have purchased.
Step 3
Delete the account by clicking here once you've successfully swapped the username: https://instagram.com/accounts/remove/request/ or by hitting the "I'd like to delete my account" link in the lower right hand corner in "Edit Profile".
Step 4
Once you've signed in to your fresh account, click on your account and hit "Edit Profile" or go here: https://instagram.com/accounts/edit/
Step 6
Remove any existing applications that have access to your Instagram/make sure no other applications have authorization access to your Instagram account besides you.
Step 7
Change the password and security question information to something very complex, including numbers, uppercase/lowercase letters, and special characters.
Step 8
Change the email to a 2-step verification @hotmail.com email address in order to have maximum account security.