I'm afraid my advise to someone who does not sew well, is to not sew for money. People want to buy things they could not make themselves, and if your merchandise looks amateurish, it will not sell well. Do you cook ? How about making interesting cookies or brownies or candy to sell. People always love to eat, so if you do that better than sewing, I would suggest that. And also, speak to local churches about your mission - they might be willing to donate some money outright.