[iMore Question]

How can I get access to reset my phone without my username or password ?

[Just_Me_D]

If you're referring to the lock screen passcode, then you'll have to connect your iPhone to your computer and then restore it via iTunes.

[robertk328]

Here are complete instructions on what to do if you've forgotten your passcode:

https://support.apple.com/en-us/HT204306

[Ledsteplin]

Once you restore via iTunes, you will still need your Apple ID and password to set up.