Greed can be worse than fear. It has potential of stealing away the joy of everything you've toiled for.
1. Don't be greedy
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2. Be frugal.
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Time - don't waste it on things that don't matter or people who do not matter.
Money - only buy things you really need (not want) and can use for a long time.
Energy - get enough sleep and take breaks from the world to recharge your batteries so you can come back stronger.
Relationships - invest in the few that are truly important to you and let go of the rest.