Hello,
It's great to see that you don't give up, I admire those single parents who has to play 2 parts of parent's role and has to work harder to raise up their children as you mention your daughter and son are your babies ( 他們陪我走過人生最低潮). Keep going and you will make it, there is nothing better to see your children grow up with healthy, happy, of course, they appreciate you are always there for them at their growing journey. Blessing you and your children.