This is the new normal, and it will require lots of adjustments. Think of your husband's lack of awareness of his condition as a blessing to him, even though it's a huge burden to you
It sounds like your husband's condition changed very suddenly. First and foremost, get the correct diagnosis. This is the most important first step. Losing one's mind is different from losing one's memory, and either can be caused by conditions as different as a stroke and Alzheimers. Meds for one memory-loss condition may be very bad for a different memory-loss condition.
Then, you will need some sort of professional help. You are likely unqualified to address your husband's health all by yourself. Besides, you need to take care of yourself. Neglecting your health will not do your husband any good. Check out your insurance. It may cover both a qualified health aid for your husband and medical transportation for yourself. If you are qualified for Medicaid, this may be the best option.
In the mean time, try leaving your husband lots of post-it notes to remind him what he needs to remember on the regular basis, Record voice messages that he can replay as needed. Be patient with repeating the same things over and over.
Most important, don't panic and don't despair.There are many people who go through the same thing you are going through. Their advice may be more helpful than what you might get here. If you can find a support group, they will help you a lot, especially with adjusting your outlook to deal with stuff without getting overwhelmed.