I need to make a serious business investment and am not sure if this is too risky for me and family

My birth date 1/24/1968. I am married to my business partner 6/23/1969. He is cautious and incredibly loyal. I don't know if my aspirations to have a comfortable future for my family is worth the risk: financially and the stress of the working around the clock to make it work. The fiancial pay-off if it is successful will allow us to retire in ten years. Need help.