On your bot's instance of mIRC, type the following command to add yourself with level 10:

//auser 10 $address(YourNickHere,2)

Fill in your nick and also note the double slash as it is necessary for the command to work properly.

By using an user level, you can control who can and who can't use different commands.

For more information, have a look through mIRC's help file.

/help levels