Go to the hospital again and trust the experts there to make their best to help you become well. If they want to hospitaliza you it is because they feel it to be necessary for your recovery. They will not keep you there longer than necessary. You will be a better support to your wife if you try to get better. The doctor can get help in diagnosis by tests and diagnostic charts but an experienced psyciatrist understands what illness the patient suffers from and can then suggest the correct treatment.