Lock down your Google account before someone else gets in

Help me lock down my Google account.

My phone: [e.g. Android, iPhone]
How I sign in now: [e.g. password only]
Recovery phone and email set: [yes, no, not sure]
Somewhere safe I can keep paper codes: [e.g. a drawer at home]

Ask me up to 3 short questions first if anything important is missing. Wait for my answers.

Then:
1. A checklist to turn on 2-Step Verification, using Google prompts on my phone if that suits.
2. How to print or save backup codes, and where to keep them.
3. A check of my recovery phone and email.
4. What to do if I lose my phone.
5. Three warning signs of scams: never share a verification code, even with someone saying they're from Google or my bank.

Only use what I've told you, leave blanks for anything I haven't given, and don't invent facts. UK English. If I think I've been scammed, call my bank on 159 and report it to Report Fraud on 0300 123 2040.

Stay in this ChatGPT chat. Do not turn on apps or connectors, and do not use memory from another chat.