With such a strategy, have you been increasing your holdings that way? It is not usually very profitable to trade Bitcoin in a position for a short-term profit; not that it's absolutely not profitable, but in some market situations, it's usually very difficult for you to make decisions that might cause you to sell at a loss, believing that the price will fall and you will buy back. But if it's been a working strategy for you, then you can continue, although having to use all your holdings to perform the trade is kind of risky. For example, if you have, say, 0.4 BTC, at least you can divide it and use half.