Retiree Decalogue

Seek investment to cover my whole retirement stage
Ensure you have income (cash flow) needed to cover regular budget expenses
Seek information from reliable sources
Do not invest in what is not understood
Knowing my risk profile of investing accordingly
Every investment has risks. Identify them
Increased profitability (offered or expected) is always accompanied by increased risk
If you decide to manage money directly. should not put all resources in one or a few destinations. To diversify
Knowing the costs of any investment. If it is a service, how do I charge for it?
Money is not invested and consumed in money not recovered