How can I cope with the feeling of being 'alone' as a caregiver?

Go to meetings. You must look for support in organizations that deal with the medical condition of your relative or person you are caring. Check with the local hospital, the yellow pages, your insurance company or your pcp. There are support groups virtually for any medical condition. Check the internet for specific diseases. Try to share the burden with other relatives. Talk with your friends about how you feel.