We must understand that when it comes to conducting any kind of business, we may inevitably encounter a situation where we may suffer from losses. Under such kind of conditions we must prepare ourselves in order to face losses. A person who fears losses may not be able to start or conduct any kind of business at all.
Personally, I don't think that I have seen any business that have been operating for either a short period of time or long period of time and it never had series of loss. It doesn't matter how good you are as the business owner or how good your business management have been, there will be inevitable losses once in a while.