C.N.
Dear S.,
Then stop trying to get him to go to school, he will go if and when he gets the courage. I know exactly how he feels - I felt the same way and only got started back to school because some friends were going too. After a couple of classes with them, I was able to go out and do it by myself. I was scared and insecure all the way, but the first part with my friends was what gave me the couage to be able to move ahead.
Also, my beloved grandson went back to school, and discovered that, he also, couldn't keep up with the required reading. Studying at home is a problem sometimes because of all that is going on. My husband put up a card table for me in our bedroom, and I closed the door when serious studying had to be done. Maybe school isn't what your husband really truly wants to do. It can really be a grind.
You are doing something that a lot of people do - me too - we 'borrow trouble' that is, make up something horrible that is going to happen if this and if that. Never mind and try to think a bit more of the good parts of his job - He has to make his own decisions, did I say that before? Sorry.
Also, you go right ahead and get your certification that is a wondrous skill that you have and you need to pursue it. Never mind if he doesn't want to take care of the kids - you have a 21 year old and probably someone closer to her age also. Two very good baby sitters, and you can pay them and reward them and thank them and love them and try to help them pursue their dreams too. So get together and talk it over, and start appreciating your husband for what and who he is. Take a look at him when he isn't looking. My husband is 81 years old and he is cranky and self centered and grouchy and stuff like that, and he is the light and love of my life. So, there you are. C. N.