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.
I believe there will not be any wrong in depending on others for making some decision about buying and selling bitcoins. Because relying on others like a group of people will be getting us some predictable price movement based decisions.
Personally I like to suggest everyone not to have any plan to sell instead of that, plan up to use your bitcoin for your future.