Only natural - you don't want to lose what you have.
Not everything you invest in is equally risky, in general one could say that the greater the risk the greater the possible reward is. What you could is check with your bank if there is perhaps a special savings account you could put the money on, one that does give a little interest and in return you will have to tie your money for maybe sic months or so. Or maybe you can buy government bonds or similar - also not much interest but they should be very safe.
Or maybe you could ask your parents - maybe they will have like a car loan you could pay out for them and they will then instead pay you interest instead of some bank.