I already sold some BTC and I'm pretty happy that I did because of the fact that there is a chance that there will occur a crash soon.
I always appreciate when people (including newbies) make their own decision when it comes to investments. Relying on others opinion or information might cause a loss so it is none other than a gamble. You sold your bitcoins when price was on the peak and you made profits and now you can decide should you buy bitcoins again at lower price or not.