MySQL Server 2000 help.

Hello im a huge noob here. I am trying to set up my database for my practice server. One of the steps is to go to "Edit Sql Server Registration Properties" well when you do this you have to have your username that you made up when you installed MySql.
What my question is going to be is. How do you get your user name back if you have forgotten it? (i know i dumb trust me im having bad blonde moments)
do i need to reinstall it, or is there a way to get it back?

Thank you so much to anyone who reads this and helps.
And, no thank you to anyone who starts calling me names xD

you noob (no thank you anymore :D )
enter your sql enterprise manager, and search for the tab "security" in your local server. there you have usernames. you can either create a new username, or you can edit the password of an existing one by right-clicking on the user and selecting proprieties.