I am just about to take out a mortgage in my sole name having recently separated from my husband. Never had any kind of personal insurance before and feeling a bit lost. I work and am financially responsible for my 3 children without any financial support from their father. I want to safeguard against being unable to work due to illness. In case of my death I think their father would step up to the plate. Any advice as to what might be my best type of insurance policy gratefully received. TIA.