I would like to add some other tips for people in your list:
1. Try to find source of new income. If you are doing job try to get some part time job side by side. Never get over dependent on one source of income. No matter how much overtime you do your employer would still lay you off on the name of Cost Cutting
That seems to be the hardest point for most people to grasp
Because a regular job gives you a false feeling of stability and certainty, which are not there. And it is not even so much about overworking as such (which may make sense in certain circumstances). A lot of people tend to think that it makes them more valuable to the company. However, this is not the case as what extra hours actually contribute to is your employer's certainty that you desperately need to keep this job, i.e. resulting in the opposite result, not the one you may expect and hope for. Really, would you willingly choose to overwork if you didn't depend on the job?
True Indeed! I think quick promotion and appeasing the boss are sole reason why people develop tendency to overwork. What actually should happen is working for a different source of income in that same time. People always remember not to keep all their investment in one Asset. But the same thing applies on sources of Income also. Why keep all your income from one source? Shouldn't we apply the rule of don't keep all eggs in one basket here? I have seen this habit in most of the financially stable people that they never depend upon one source of Income and whatever may happen it's a very low chance that all sources of Income would shut down due to some reason.