You don't have to fear of missing out!
In the upcoming days the charts in the crypto arena will look like "crocodile teeth". Ups and downs will paint the charts in long red and long green candles for the simple reason of quick changing in and outflows of money; but in comparison with the US stock and bond market... tiny amounts of money, that as quickly as it enters the cryptocurrency-stage leaves. But to say Bitcoin is in a bubble right now is so far away from truth as I'm away from mars.
A bubble means that your barber's telling you about his latest investment into Ethereum; explaining to you how wonderful immutable this Blockchain is while warning his baby dog "Vitalik" to stop begging. A bubble means that every single man out in the street talks about "Hyperledgers", "SegWit activation" and "PRISM".
That's the time when you should think about selling your Bitcoins or when a Mongolian horseman is telling his cousin in Kasachstan about trading cryptos; then but only then we are in a real BIG BUBBLE!
To end this short expertise of "what's a bubble like" and also because I do not want to decorate me with someone else's wisdom, listen to Clif High, one of the brightest minds I ever heard of.
"Patience is required in order for fortunes to be made!"