You should seek advice from competent, experienced professionals to help you make investment decisions. Whether you are investing for long term growth, investment income or other reasons, an investment should match your own investment goals. Some things really are too good to be true. Use common sense and get a professional opinion when presented with investment opportunities that seem to offer unusually high returns compared to other investment options. Pie in the sky promises could spell investment fraud.
Every investment involves some element of risk.
You should know what these risks are and be prepared to accept them. If you can't afford the risk, don't take it. Putting all your eggs in one basket is a risky proposition. If the investment fails, you stand to lose everything. Wise investors put their money into a variety of investments to achieve a balanced portfolio and to spread their risk around.