If it happened that you lost most of the money, then you need to stop trading and begin to do an analysis of all trade transactions. You need to understand the mistakes.
In my own opinion, if you already lost your money then just continue to trade because you will still have the chance to gain it back in this way since the volatility of the market is necessary for every traders to earn profit.
Yes no doubt that you should continue trading and should not quit it forever, but I think that you must change your strategy and planning about trading, which is already causing a lost for you, and through this ways you will surely convert your lost into profit.