Bored sahm

What do stay at home moms do all day?? I cook and clean and take care of my 5 month old. I’m taking online classes and working nights but I’m so bored and lonely all day. I hate working because I’m so exhausted from being alone all day with the baby. My friends are all busy and when we do go out it’s exhausting. I exercise some but I have an autoimmune disease so that’s difficult for me too. In my religion we’re taught that a parent should be at home to raise our children if at all possible so I don’t want to do daycare. I’m a single mom (my parents watch him at night so I can work). I want to be at home with him but I’m starting to feel like I’m not cut out for this