The first thing you need to do is get a sleep study. Regular sleep is essential for normal nervous system function and for good general health. Without regular sleep, people often become depressed and sometimes even show symptoms that look like psychosis. It’s not unusual for a person with a sleep disorder to be unable to make decisions or to follow through on goals. It may well be that the sleep disorder is the root of all your other problems. At least find out. Ask your doctor for a referral to a sleep study clinic and take their suggestions very seriously.
You seem like an intelligent person who has great problem-solving skills and compassion for others. I hope you will put those attributes to work for yourself. Do some reading up on sleep disorders and get yourself the help you need.
I wish you well.