The best way to liquidate your profits is to find a local exchange in your country and deal with them, almost every country have Crypto exchangers right now, you can find them in Localbitcoin or in Facebook groups in your country. Also in the marketplace in Cryptocurrency related forums like this one, the most important thing is to take care while exchange and make sure yo exchange with 200% trusted person because this field is full with scammers.
And if you want to just move your money in stable currency to be able to re-enter the market as fast as you can then your best option would be USTD, also some big exchange start to provide USD now.