You can consult my way. With MEW wallet, i use Json + Password to unlock, don't use your Private key, because if you lost Private key, you lost all, avoid using it.
Then i split my password to 2 part: a half i save in a notepad file and a half i remember. So when logging in i copy a half and type a half.
With other wallet, if it have 2FA authenication, you must use it