if you sell all the bitcoin that you have then I think you will regret it someday because you will not be able to enjoy the benefits when the price of bitcoin rises.
Although if you had the holding power, it could have been good to keep the coins for couple of months more. Who knows there might be bull run and the value of your coins become even more than double.
You should also mention why you sold your bitcoin? If it is due to financial need then it is ok, because money is for financial problems. If you sold because of the falling price then you made wrong decision, because this situation will never be the same and will change with every passing day. You showed impatience and impatient people cannot make money from bitcoin.
It is right that you will be unhappy in the future when you see the price rising. It would be much better if you keep some of your coins in your wallet and held them till the price grew more. Anyway you better understand why you sold your bitcoin, but as I think it is not good for the future at all. Bitcoin is the future currency and everyone must have bitcoin for general use.