Hi C.,
It sounds like your first problem is a baby that cries all day. That isn't normal. What does his doctor say? At six months he should be sleeping long enough for you to get your work done. In the evening he should have supper,and warm bath,a warm bottle, and be in bed early enough for you to do your school work.
That hard working guy in your life needs to know that you are overwhelmed with all the responsibilities. You're a NEW mom, and it takes some getting use to. He needs to step up to the plate and be some help. Talk to him. Until you get more
organized he should help.
HE needs some "wind down time?" What about YOU? You need some ME time too! Give your honey an hour, and dinner. Then give him his son right before the baby goes to bed. Let him give him his warm bottle, or Let him read to him. Babies love the sound of your voice. Let him be ON CALL if the baby cries while you are doing your school work.
When you have a little baby, THERE IS NO WIND DOWN TIME!!! You have RESPONSIBILITIES NOW! The BABY's needs ALWAYS come first.
C., this probably wasn't the BEST time to try to take classes online. Though it will certainly pay off in the future, and make life a lot nicer for you and your family.
The good news is that this will get better and a lot easier when you will learn to organize yourself better. You NEED help, don't be afraid to ask for it! Let HIM be a father. Being a parent is a FULL TIME job for BOTH OF YOU. You aren't in this alone.
Lots of people have more than one child!! Scary, huh?
Good Luck!!! You can do this!! :)