Whynot
Those feelings never leave, its a brainwash and you have to fight it each day. My son is 52, has nightmares still to this day, of armageddon - stress related anxieties he knows are from his childhood. You will hear many stories on this site about that but all each one can do is put one step ahead of the other. You need help- is there a non profit that offers help to parent caregivers in your area? Ask your doctor for a reliable centre to go to? You need respite help to allow you to go shopping or the spa for a few hours for your own sanity. Does your government provide help is such situations?
Two autistic children will drain you even though you love them sooo miuch
Keep touch with this board, it can be helpful, a good place to listen to others going through the same issues or close to it, that you are having