Obviously investing you can achieve more profits but losses at the same time, due the equation more yield and more risks.
There is some investment that doesn't lose rather it keeps appreciating over the time let say investment to connected with real estate or landed properties, this types of investment never keep you on a lost rather increased your profitability.
Investments that concerns owning a business well the risk factor is equal you can make 100 percent profits and lost 100 percent of your profits why because the risk can never be determined so, while doing your research on the types of investment you should do then you have to think smart and quickly to know the kind of investment you should venture on.