Help couponing

I’m at 22 year old stay at home mom. My husband works part time and we live with my mom until we get on our feet. We have two kods🙃😓 we are trying to make it. We’ve been buying used clothing for a few months now. But getting a place and saving money is hard. Where do we start. Can someone teach me how to coupon and help us get on our feet. What can I do to help my husband make more money while I’m at home with the kids. I’m getting older and older. We both didn’t finish school but are working towards getting our g.e.d😓