As a child of such a mother, I can tell you it may take them growing up to realise how hard life is, or it may not, and they will just see. But what I see in mine is the woman who was there every step of the way and still is. No matter her struggle. Strong and a fighter, who taught me that giving up is not an option, that whatever happens you can handle it.
You are teaching them great strength and perseverance and you're doing it all for them. They see, they feel it. That is what makes a great mother