Delete Account Through Settings
Step 1: Open the Instagram app
Step 2: Tap on the profile icon
Step 3: Tap on the 3 lines
Step 4: Tap on settings
Step 5: Tap on accounts center
Step 6: Tap on personal details
Step 7: Tap on ownership and control
Step 8: Tap on deactivation and deletion
Step 9: Choose the account
Step 10: Select delete and tap on continue
Delete Account Through Search
Step 1: In Settings search for deactivation and deletion
Step 2: Tap on it
Step 3: Choose the account
Step 4: Select delete and tap on continue