You have deactivated your Instagram account and now you want to reactivate the account so you don’t need to worry. Reactivating process is more simple than the deactivation.
Open your Instagram app and log in with your same username and the password.
If you forget the password, click on the forget password, then Instagram will send you a verification code on your number.
Type the code and type your new password.
Start your Instagram account. Your account will activate again.