No one can tell you your risk level.  A single bitcoin could be worth a lot in the future or worth nothing.  Many people believe it has a ton of potential and will be worth a lot, but there are no guarantees.

If you are not sure, think of it as a lottery ticket - it either is worthless or pays off a lot.  But whether or not you should put money into it, that only depends on whether you could afford to lose it if it came to that.

My own take is that I think bitcoin has a lot of potential, a lot of uses, and a great future, but that there are always risks.

:-)