I don't think bitcoin is just another currency, on the contrary, it was the precursor of a great international macroeconomic movement. Looking at bitcoin as just another currency is like looking at ford T and thinking that it was just another car. Bitcoin came to stay and to teach us that we can live without depending on banks and governments.

It is normal to be afraid when the bitcoin goes down so much, as they always say you only have to invest what you are willing to lose. Likewise, if we look at the historical graphs of the BTC we are going to see that whenever it went down, and then went up much more, so do not lose hope, keep holding.

Buying new coins is one of the most risky things you can do. If you want to take a risk I recommend you always use stop loss and keep them as short as possible.