New ways of investments

Turning 28 this year and have 200k in SSB, endowment, FD. Any advice where I should put my next few savings to? Looking personally at less risk guaranteed returns. From what I read so far, seems those I have now are already the less risky ones. Was then recommended by friends to try on REITs, Life insurance etc and they were saying it's good to take some risks now while we can still afford to do so. I am not really certain about this and after reading up, it got me quite confused with how all these different investments works and the payouts etc. Is this really so where REITs life insurance and still generally not the most risky ones? How do you determine if a risk is something you want to take or not? Appreciate any suggestions or advice.