A lot of blogger mommies can sew now. And some of the sewing beginners even sell their product after few rounds of practice. Therefore I believe nothing is impossible. Everyone can sew now. You no need to attend sewing class too. What you can do is learn from online tutorials. There are lots of free tutorial that you can find from online. Many crafters or sewers willing to share their craftworks too. personally I also learn some other sewing method from them. that is the wonderful part of internet ya.