Its actually depends on only yourself. If you are happy with profit in btc where you brought by 0.045 btc and sold them by 0.050 btc. So you are still in profit about 0.005 btc. Now only you can realize that you are happy or not. If you are thinking now that 0.005 btc is enough profit from the trade you are fine. But if you are thinking you are in loss with USD value then you are in loss now.
In reality mate, making profit is hard nowadays specially when price fluctuates badly at trading sites. The best thing to incorporate with our mindsettings was to choose long term holdings instead of trading most often times. On that ways, you can cope up any losses in case you can't manage a good trades.