Withdrawing your profit is a good way to manage your assets. But it's up on your hands on how you are going to grow that money. If you don't want to miss the chance of losing a lot of potential profit at better price, it's better that you forget to sell now. Just keep on holding first.
Yeah i think there is not anything wrong if you choose to sell a portion of your bitcoin on some important things you quite needed for a living. For me it is just a form of support for the development of bitcoin itself because whenever you used bitcoin on transaction there is a specific movement happens on the market of bitcoin. Hence, it could be better if you will treat every transaction as a form of trading where you have a planned and management on every decision you will make. It much better to monitor the price for you to know how much you can earn if you could hold more for further investments.Smiley Smiley
I usually do sell my coin using a particular percentage! I have find out that most of the indicators failed in give entry and exists signal. But if you are use -% for buying and positive percentage for selling you will hardly loses in cryptocurrency trading.
Although i am not selling my bitcoin for the purpose to book some profit, but some time when i feel then need of money for fulfilling my need i use to sell some bitcoin and change into fiat currency, but still i try my best not to feel the need to sell my bitcoin, because i know the importance of bitcoin and its potential which can increase too much in next few mothns.