If it is absolutely necessary that you check your email and the only way to do it is on a public computer, forward your email to a disposable email account like Mailinotor or Trashmail that has a short life and a timed expiration.
Four handy ways to lock your screen on Windows and macOS.
You’ve interacted with scammers or visited a phishing site. What steps should you take to avoid being hacked?
Some thoughts on what PC software patches should be prioritized and why.
You can apply the concept of a threat landscape as used in corporate security to yourself to make it easier to stay protected.