Use your registered mobile number as the basic recovery method because you are not even comfort with regular usernames and email ids. When you login with register number or if you want to recover your instagram account then go to the recovery page and enter your phone number to get verification code and new passwords. This is the basic way those who are all expecting to know how to recover an IG account and you may try with Facebook account details to get into your instagram application legally without any inconvenience. When you try with phone number you need to proceed with several details like date of birth, personal details, age and other but the through Facebook details it will easily direct you to the new password creation page and you can recover it easily. But once you deleted your instagram account then it will not be re-created in the same name because it is not stable once deleted and others may be used instead of you.
If you want to access it normally then you must check whether it is disabled or deleted because once your account was deleted then it is tough to get back in the same username. Generally instagram will send you a message when you choose delete option and it will give time for certain period to get back your login. If you failed to do that then it will be permanently moved to delete and the username will be available for other users. If it is in disabled mode you can make into live by entering your actual username and password without any extra effort so choose right path to know how to recover an IG account from online and use your instagram account politely without any tension.
It is not meaning that it was deleted because people wrongly mean that your account has been deleted from the server. So check twice whether your account has been disabled or deleted when you want to know how to recover an IG account. If it is deleted then you cannot do anything because after a long patience from the instagram admin it will be happen and you will get intimated from the instagram admin before deleting. If the account is disabled by username and password you can use it normally but when the account is lost then you cannot use the same name later. Because the username is available for everyone to use it so you need to create new account to use instagram again.