It's not just your family. In much of the world, people (most especially your parents) will equate entrepreneurship with not having a job, scamming, all sorts of negative associations. But it's your family, so they will be somewhat forgiving. Show them what you're doing, point to the people in the world who have done well (de-emphasize the billionaires, and emphasize the people who created jobs for themselves). Be passionate. Like everything you do, you have to sell it to them.