Logging, monitoring, etc... is of no value if you do not have an intuition of what to monitor.
Monitoring is mostly reactive, to stay afloat you should focus on prevention: know your code, keep it clean, test it, do load testing... and monitor it.
Monitoring is mostly reactive, to stay afloat you should focus on prevention: know your code, keep it clean, test it, do load testing... and monitor it.
Personally, I recommend learning domain modeling and understanding entity relationships, primary and foreign keys then SQL. Great foundation for engineers at most companies.