Everyone at the workplace must keep their privacy confidential:

1. Your next steps and future career plans, life plans
2. Your mental and psychological state
3. Your relationship status
4. Your physical condition
5. Your sources of income, assets, and spending—most topics about money
6. Family relationships

Oversharing this information won’t help your career progress; it can easily lead others to develop biases against you, and even treat it as your weakness to attack you.
Hesitating on these topics, answering off-topic, or steering the conversation elsewhere also helps improve your professionalism and maturity at work.