MacBook Reinstallation Assistance -- 2

I'm currently stuck in Utility Disk Terminal mode on my MacBook and need help erasing older MacOS system and "boot disk" installing a new one. I'm looking for an experienced Whitehat Mac technician who can guide me through this process. Key Requirements: - Experience with MacBook and MacOS installations. Terminal Codes. - Ability to provide clear, step-by-step instructions - Patience and understanding to assist a novice user Please note: I don't need to back up any data, I want a clean install of VirtualB.