My mum doesn’t approve of my new business idea

So I (F28) grew up my whole life as a Christian, my family are also Christian and go to church most Sundays. Recently I came up with a new business idea with my boyfriend to start a cleaning business, my boyfriend met someone on holiday and was talking to him about how he had his own cleaning business and became successful from it, and I was thinking of doing it afew months ago, so we thought this must be a sign from God to do something with it. I told my mum about the idea and she disapproved and got quite angry about it because she thinks cleaning isn’t an academic job and thinks I can do better, but I believe we can make something of this business. As a Christian shouldn’t she support me in what I do? I do want to go ahead with the business as I feel passionate about it. As a Christian how would you go about this situation?